query: SELECT name FROM instructor WHERE dept_name  =  'Comp. Sci.'  AND salary  >  80000
question: What are name instructor Comp. Sci. department who earn more than 80000?
query_toks: SELECT name FROM instructor WHERE dept_name = 'Comp . Sci . ' AND salary > 80000
query_toks_no_value: select name from instructor where dept_name = value and salary > value
question_toks: What are name instructor Comp. Sci. department who earn more than 80000?