tokens: Since we 've only got 9 vertices that go into these faces , it 's easier to just plug them in manually to create a m x 9 matrix and then reshape into m*3 x 3 :
ner_tags: O O O O O O O O O O O O O O O O O O O O O O O O O B-Code_Block I-Code_Block I-Code_Block B-Data_Structure O O B-Function O B-Code_Block I-Code_Block I-Code_Block O