zeros = filter (WLPA.equal_wrt_graph weighted_example WLPA.Zero . WLPA.convertTerm) twos
zeros = filter (WLPA.equal_wrt_graph weighted_example WLPA.Zero . WLPA.convertTerm) twos
zeros = filter (WLPA.equal_wrt_graph weighted_example WLPA.Zero . WLPA.convertTerm) twos