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