premise: Man plays electronic drum set in band.
hypothesis: The man is only drummer in the band.
explanation_1: A man playing drums is not assumed to be the only drummer.
explanation_2: When a man plays an electronic drum doesn't mean that he is the only drummer in the band.
explanation_3: Man plays electronic drum set in band don't necessarily imply that the man is only drummer in the band.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & in(e1,x4) & n_band(x4) & Theme(e1,x3) & v_set(e1) & (x2 = x3) & n_drum(x2) & a_electronic(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists p1 x1 x2.(n_band(x2) & n_man(x1) & in(p1,x2) & exists x3.((x1 = x3) & all x4.(n_drummer(x4) -> (x3 = x4)) & n_drummer(x3)))