Task: Code to Text
Input (English): and { only { filter_eq { all_rows ; country ; canada } } ; eq { hop { filter_eq { all_rows ; country ; canada } ; year } ; 2011 } } = true
Output (English): select the rows whose country record fuzzily matches to canada . there is only one such row in the table . the year record of this unqiue row is 2011 .