query: SELECT document_type_description FROM Ref_Document_Types WHERE document_type_code = "Paper";
question: What description document type 'Paper'?
query_toks: SELECT document_type_description FROM Ref_Document_Types WHERE document_type_code = `` Paper '' ;
query_toks_no_value: select document_type_description from ref_document_types where document_type_code = value
question_toks: What description document type 'Paper'?