eq { hop { filter_eq { all_rows ; event ; masters } ; 2012 - 13 } ; hop { filter_eq { all_rows ; event ; autumn gold } ; 2012 - 13 } } = true
select the rows whose event record fuzzily matches to masters . take the 2012  13 record of this row . select the rows whose event record fuzzily matches to autumn gold . take the 2012  13 record of this row . the first record fuzzily matches to the second record .