Table 3.
Part-of-speech Tags in Pre-processing
| Tag | Description | Examples | Tag | Description | Examples |
|---|---|---|---|---|---|
| CC | Coordinating conjunction | and, or | PRP | Personal pronoun | I, you, he |
| CD | Cardinal number | one, two | PRP$ | Possessive pronoun | your, one’s |
| DT | Determiner | a, the | RB | Adverb | quickly, never |
| EX | Existential ‘there’ | there | RP | Particle | up, off |
| FW | Foreign word | mea culpa | SYM | Symbol | +, %, & |
| IN | Preposition/sub-conj | of, in, by | TO | “to” | to |
| JJ | Adjective | good, long | UH | Interjection | ah, oops |
| LS | List item marker | 1, 2, One | VB | Verb, base form | look, eat |
| MD | Modal | can, should | WDT | Wh-determiner | which, that |
| NN | Noun | apple, book | WP | Wh-pronoun | what, who |
| NNP | Proper noun | IBM | WP$ | Possessive wh- | whose |
| PDT | Predeterminer | all, both | WRB | Wh-adverb | how, where |
| POS | Possessive ending | ‘s |