premise: Twenty five people are marching.
hypothesis: A man plays the trombone on the sidewalk.
explanation_1: It is not mentioned what they are doing as they march, and whether they are playing instruments such as the trombone.
explanation_2: People marching doesn't imply that someone plays the trombone while they march.
explanation_3: Twenty five people is not a single man.  Marching does not imply playing a trombone.
premise_logic: exists e1 x1.(Actor(e1,x1) & v_march(e1) & n_people(x1) & card_eq_25(x1) & card_eq_25(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_sidewalk(x3) & n_trombone(x2) & on(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))
premise_sim: exists e1 x1.(v_march(e1) & n_people(x1) & card_eq_25(x1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3.(v_play(e1) & on(e1,x3) & n_trombone(x2) & n_sidewalk(x3) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1))