A Dependency representes the result of the DependencyParseAnnotator https://stanfordnlp.github.io/CoreNLP/depparse.html.

A Document contains a result of annotation.

EntityMention represents entity mentioned in the sentence https://stanfordnlp.github.io/CoreNLP/entitymentions.html.

A Parse represents a constituency parse of the sentence.

A Sentence contains the results generated by some Annotators.

Token represents the word in the sentence with some annotations.