and { only { filter_eq { all_rows ; venue ; windy hill } } ; and { eq { hop { filter_eq { all_rows ; venue ; windy hill } ; home team } ; essendon } ; eq { hop { filter_eq { all_rows ; venue ; windy hill } ; away team } ; st kilda } } } = true
select the rows whose venue record fuzzily matches to windy hill . there is only one such row in the table . the home team record of this unqiue row is essendon . the away team record of this unqiue row is st kilda .