tokens: Since the key is a maximum of 3*255+(20/2+1) = 776 bytes , and the rule of thumb is you need to be able to store 5 maximum-length key values + ROWID/FRAGID overhead ( 8 bytes ) per page , you would need a 4 KB page size .
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 O O O O O O O O O O O O O O O O O O O O O O O