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Syntax

The study of how words are combined to form sentences. This includes examining parts of speech and how they combine to make larger constructions.

Semantics

The study of meaning in language. Semantics examines the relations between words and what they are being used to represent.

Morphology

The study of units of meaning in a language. A morpheme is the smallest unit of language that has meaning or function, a definition that includes words, prefixes, affixes, and other ...

From

Cover of Natural Language Annotation for Machine Learning

Note

These are the types of "data" interpretations of the corpus used to inform your solution.