Task: Code to Text
Input (English): and { only { filter_eq { all_rows ; constellation ; hydra } } ; eq { hop { filter_eq { all_rows ; constellation ; hydra } ; ngc number } ; 5078 } } = true
Output (English): select the rows whose constellation record fuzzily matches to hydra . there is only one such row in the table . the ngc number record of this unqiue row is 5078 .