Task: Text to Code
Input (English): select the rows whose metres record is greater than 300 . there is only one such row in the table . the name record of this unqiue row is the shard .
Output (English): and { only { filter_greater { all_rows ; metres ; 300 } } ; eq { hop { filter_greater { all_rows ; metres ; 300 } ; name } ; the shard } }