| Package | Description | 
|---|---|
| com.ibm.watson.natural_language_understanding.v1 | Natural Language Understanding v1. | 
| com.ibm.watson.natural_language_understanding.v1.model | 
| Class and Description | 
|---|
| AnalysisResults Results of the analysis, organized by feature. | 
| AnalyzeOptions The analyze options. | 
| CategoriesModel Categories model. | 
| CategoriesModelList List of categories models. | 
| ClassificationsModel Classifications model. | 
| ClassificationsModelList List of classifications models. | 
| CreateCategoriesModelOptions The createCategoriesModel options. | 
| CreateClassificationsModelOptions The createClassificationsModel options. | 
| DeleteCategoriesModelOptions The deleteCategoriesModel options. | 
| DeleteClassificationsModelOptions The deleteClassificationsModel options. | 
| DeleteModelOptions The deleteModel options. | 
| DeleteModelResults Delete model results. | 
| GetCategoriesModelOptions The getCategoriesModel options. | 
| GetClassificationsModelOptions The getClassificationsModel options. | 
| ListCategoriesModelsOptions The listCategoriesModels options. | 
| ListClassificationsModelsOptions The listClassificationsModels options. | 
| ListModelsOptions The listModels options. | 
| ListModelsResults Custom models that are available for entities and relations. | 
| UpdateCategoriesModelOptions The updateCategoriesModel options. | 
| UpdateClassificationsModelOptions The updateClassificationsModel options. | 
| Class and Description | 
|---|
| AnalysisResultsUsage API usage information for the request. | 
| AnalyzeOptions The analyze options. | 
| AnalyzeOptions.Builder Builder. | 
| Author The author of the analyzed content. | 
| CategoriesModel Categories model. | 
| CategoriesOptions Returns a hierarchical taxonomy of the content. | 
| CategoriesOptions.Builder Builder. | 
| CategoriesRelevantText Relevant text that contributed to the categorization. | 
| CategoriesResult A categorization of the analyzed text. | 
| CategoriesResultExplanation Information that helps to explain what contributed to the categories result. | 
| ClassificationsModel Classifications model. | 
| ClassificationsOptions Returns text classifications for the content. | 
| ClassificationsOptions.Builder Builder. | 
| ClassificationsResult A classification of the analyzed text. | 
| ClassificationsTrainingParameters Optional classifications training parameters along with model train requests. | 
| ClassificationsTrainingParameters.Builder Builder. | 
| ConceptsOptions Returns high-level concepts in the content. | 
| ConceptsOptions.Builder Builder. | 
| ConceptsResult The general concepts referenced or alluded to in the analyzed text. | 
| CreateCategoriesModelOptions The createCategoriesModel options. | 
| CreateCategoriesModelOptions.Builder Builder. | 
| CreateClassificationsModelOptions The createClassificationsModel options. | 
| CreateClassificationsModelOptions.Builder Builder. | 
| CreateSentimentModelOptions The createSentimentModel options. | 
| CreateSentimentModelOptions.Builder Builder. | 
| DeleteCategoriesModelOptions The deleteCategoriesModel options. | 
| DeleteCategoriesModelOptions.Builder Builder. | 
| DeleteClassificationsModelOptions The deleteClassificationsModel options. | 
| DeleteClassificationsModelOptions.Builder Builder. | 
| DeleteModelOptions The deleteModel options. | 
| DeleteModelOptions.Builder Builder. | 
| DeleteSentimentModelOptions The deleteSentimentModel options. | 
| DeleteSentimentModelOptions.Builder Builder. | 
| DisambiguationResult Disambiguation information for the entity. | 
| DocumentEmotionResults Emotion results for the document as a whole. | 
| DocumentSentimentResults DocumentSentimentResults. | 
| EmotionOptions Detects anger, disgust, fear, joy, or sadness that is conveyed in the content or by the context
 around target phrases specified in the targets parameter. | 
| EmotionOptions.Builder Builder. | 
| EmotionResult The detected anger, disgust, fear, joy, or sadness that is conveyed by the content. | 
| EmotionScores EmotionScores. | 
| EntitiesOptions Identifies people, cities, organizations, and other entities in the content. | 
| EntitiesOptions.Builder Builder. | 
| EntitiesResult The important people, places, geopolitical entities and other types of entities in your content. | 
| EntityMention EntityMention. | 
| Features Analysis features and options. | 
| Features.Builder Builder. | 
| FeatureSentimentResults FeatureSentimentResults. | 
| FeaturesResultsMetadata Webpage metadata, such as the author and the title of the page. | 
| Feed RSS or ATOM feed found on the webpage. | 
| GetCategoriesModelOptions The getCategoriesModel options. | 
| GetCategoriesModelOptions.Builder Builder. | 
| GetClassificationsModelOptions The getClassificationsModel options. | 
| GetClassificationsModelOptions.Builder Builder. | 
| GetSentimentModelOptions The getSentimentModel options. | 
| GetSentimentModelOptions.Builder Builder. | 
| KeywordsOptions Returns important keywords in the content. | 
| KeywordsOptions.Builder Builder. | 
| KeywordsResult The important keywords in the content, organized by relevance. | 
| Model Model. | 
| Notice A list of messages describing model training issues when model status is `error`. | 
| RelationArgument RelationArgument. | 
| RelationEntity An entity that corresponds with an argument in a relation. | 
| RelationsOptions Recognizes when two entities are related and identifies the type of relation. | 
| RelationsOptions.Builder Builder. | 
| RelationsResult The relations between entities found in the content. | 
| SemanticRolesEntity SemanticRolesEntity. | 
| SemanticRolesKeyword SemanticRolesKeyword. | 
| SemanticRolesOptions Parses sentences into subject, action, and object form. | 
| SemanticRolesOptions.Builder Builder. | 
| SemanticRolesResult The object containing the actions and the objects the actions act upon. | 
| SemanticRolesResultAction The extracted action from the sentence. | 
| SemanticRolesResultObject The extracted object from the sentence. | 
| SemanticRolesResultSubject The extracted subject from the sentence. | 
| SemanticRolesVerb SemanticRolesVerb. | 
| SentenceResult SentenceResult. | 
| SentimentOptions Analyzes the general sentiment of your content or the sentiment toward specific target phrases. | 
| SentimentOptions.Builder Builder. | 
| SentimentResult The sentiment of the content. | 
| SummarizationOptions (Experimental) Returns a summary of content. | 
| SummarizationOptions.Builder Builder. | 
| SyntaxOptions Returns tokens and sentences from the input text. | 
| SyntaxOptions.Builder Builder. | 
| SyntaxOptionsTokens Tokenization options. | 
| SyntaxOptionsTokens.Builder Builder. | 
| SyntaxResult Tokens and sentences returned from syntax analysis. | 
| TargetedEmotionResults Emotion results for a specified target. | 
| TargetedSentimentResults TargetedSentimentResults. | 
| TokenResult TokenResult. | 
| UpdateCategoriesModelOptions The updateCategoriesModel options. | 
| UpdateCategoriesModelOptions.Builder Builder. | 
| UpdateClassificationsModelOptions The updateClassificationsModel options. | 
| UpdateClassificationsModelOptions.Builder Builder. | 
| UpdateSentimentModelOptions The updateSentimentModel options. | 
| UpdateSentimentModelOptions.Builder Builder. | 
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