query: SELECT theme ,  YEAR FROM exhibition WHERE ticket_price  <  15
question: What-all that theme and year for all exhibitions have a ticket price under 15?
query_toks: SELECT theme , YEAR FROM exhibition WHERE ticket_price < 15
query_toks_no_value: select theme , year from exhibition where ticket_price < value
question_toks: What-all that theme and year for all exhibitions have a ticket price under 15?