and { only { filter_eq { all_rows ; champions ; sv sandhausen } } ; eq { hop { filter_eq { all_rows ; champions ; sv sandhausen } ; season } ; 2011 - 12 } } = true
select the rows whose champions record fuzzily matches to sv sandhausen . there is only one such row in the table . the season record of this unqiue row is 2011  12 .