Task: Code to Text
Input (English): and { only { filter_greater { all_rows ; latitude ; 0 } } ; eq { hop { filter_greater { all_rows ; latitude ; 0 } ; name } ; xi wang } } = true
Output (English): select the rows whose latitude record is greater than 0 . there is only one such row in the table . the name record of this unqiue row is xi wang .