cf. https://www.ling.upenn.edu/courses/Fall_2003/ling001/penn_treebank_pos.html
| Tag | Description | Examples |
|---|---|---|
| cc | Coordinating conjunction | and, but, or, either, nor |
| cd | Cardinal number | one, two, three, million, billion |
| dt | Determiner | the, a, this, that, these |
| ex | Existential there | there |
| in | Preposition or subordinating conjunction | of, in, that, for, with |
| jj | Adjective | other, many, little, first, good |
| md | Modal | can, would, will, could, should |
| nn | Noun | people, time, world, way, thing |
| pd | Predeterminer | all, half, such |
| pr | Personal pronoun | I, it, you, we, they |
| rb | Adverb | not, so, now, just, very |
| rp | Particle | up, out, down, off, on |
| to | to | to |
| uh | Interjection | well, oh, yes, not, okay |
| vb | Verb | be, have, do, go, know |
| wd | Wh-determiner | that, which, whatever, what, whichever |
| wp | Wh-pronoun | what, who, whose, whom, whoever |
| wr | Wh-adverb | when, how, where, why, whenever |