query: SELECT Zip_code FROM county WHERE County_name  =  "Howard"
question: What-what that zip code that county named "Howard" locating in?
query_toks: SELECT Zip_code FROM county WHERE County_name = `` Howard ''
query_toks_no_value: select zip_code from county where county_name = value
question_toks: What-what that zip code that county named "Howard" locating in?