query: SELECT TYPE ,  avg(Tonnage) FROM ship GROUP BY TYPE
question: Are Showing different type ship and that average tonnage ship each types.
query_toks: SELECT TYPE , avg ( Tonnage ) FROM ship GROUP BY TYPE
query_toks_no_value: select type , avg ( tonnage ) from ship group by type
question_toks: Are Showing different type ship and that average tonnage ship each types.