query: SELECT pettype ,  weight FROM pets ORDER BY pet_age LIMIT 1
question: What types of pet are a most youngest animal, and how much weigh?
query_toks: SELECT pettype , weight FROM pets ORDER BY pet_age LIMIT 1
query_toks_no_value: select pettype , weight from pets order by pet_age limit value
question_toks: What types of pet are a most youngest animal, and how much weigh?