![parts of speech - Why are prepositions and subordinate conjunctions grouped as the same tag in the Penn Treebank tag set? - Linguistics Stack Exchange parts of speech - Why are prepositions and subordinate conjunctions grouped as the same tag in the Penn Treebank tag set? - Linguistics Stack Exchange](https://i.stack.imgur.com/mlzJj.png)
parts of speech - Why are prepositions and subordinate conjunctions grouped as the same tag in the Penn Treebank tag set? - Linguistics Stack Exchange
![Recovering empty categories. Penn Treebank The Penn Treebank Project annotates naturally occurring text for linguistic structure. It produces skeletal. - ppt download Recovering empty categories. Penn Treebank The Penn Treebank Project annotates naturally occurring text for linguistic structure. It produces skeletal. - ppt download](https://images.slideplayer.com/16/4987836/slides/slide_2.jpg)
Recovering empty categories. Penn Treebank The Penn Treebank Project annotates naturally occurring text for linguistic structure. It produces skeletal. - ppt download
![Structural differences in the Penn Treebank (left) and the OntoNotes... | Download Scientific Diagram Structural differences in the Penn Treebank (left) and the OntoNotes... | Download Scientific Diagram](https://www.researchgate.net/publication/324940566/figure/fig1/AS:622406368505861@1525404650254/Structural-differences-in-the-Penn-Treebank-left-and-the-OntoNotes-Treebank-right.png)
Structural differences in the Penn Treebank (left) and the OntoNotes... | Download Scientific Diagram
![Figure 4.1 from Speech Recognition on English-Mandarin Code-Switching Data using Factored Language Models-with Part-of-Speech Tags , Language ID and Code-Switch Point Probability as Factors | Semantic Scholar Figure 4.1 from Speech Recognition on English-Mandarin Code-Switching Data using Factored Language Models-with Part-of-Speech Tags , Language ID and Code-Switch Point Probability as Factors | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/b20a61ed61baaf5a7cb0c046b16bbf660a9ddda8/28-Figure4.1-1.png)