here is abbreviation table of annotation of POS. https://www.ling.upenn.edu/courses/Fall_2003/ling001/penn_treebank_pos.html
| abbr | desc | cn | example |
|---|---|---|---|
| CC | Coordinating conjunction | 并列连接词 | and |
| CD | Cardinal number | 基数 | 1, third |
| DT | Determiner | 限定词 | the |
| EX | Existential there | 存在型there | there is |
| FW | Foreign word | 外来词汇 | les |
| IN | Preposition or subordinating conjunction | 介词/从属，连接词 | in, of, like |
| JJ | adjective | 形容词 | green |
| JJR | adjective, comparative | 形容词比较级 | greener |
| JJS | adjective, superlatives | 形容词最高级 | greenest |
| LS | List item marker | 列表项标记 | 1) |
| MD | Modal | 情态动词 | could, will |
| NN | Noun, signular or mass | 名词 | table |
| NNS | Noun, plural | 名词复数 | tables |
| NNP | Proper noun, singular | 专有名词 | Viking |
| NNP | Proper noun, plural | Vikings | |
| PDT | Predeterminer | 前位限定词 | both the boys |
| POS | Possessive ending | 所有格结束词 | friend’s |
| PRP | Personal pronoun | 人称代词 | I, he, it |
| PRP$ | Possessive pronoun | 物主代词，所有格代名词 | my, his |
| RB | Adverb | 副词 | however, usually, naturally, here, good |
| RBR | Adverb, comparative | better | |
| RBS | Adverb, superlative | best | |
| RP | Particle | 小品词 | give up |
| SYM | Symbol | / [ = * | |
| TO | to | togo | |
| UH | Interjection | 感叹词 | uhhuhhuhh |
| VB | Verb, base form | 动词 | be |
| VBD | Verb, past tense | 动词过去式 | was |
| VBG | Verb, gerund or present participle | 现在分词 | being |
| VBN | Verb, past participle | 过去分词 | been |
| WDT | Wh-determiner | ||
| WP | Wh-pronoun | ||
| WP$ | Possessive wh-pronoun | ||
| WRB | Wh-adverb |