premise: A young man with a plain shirt looking down, with a band and dancing people behind him.
hypothesis: A man looking down at something as a band and dancing people form behind him.
explanation_1: The first sentence is just more elaborate than the second, letting us know that the man is looking down rather than participlating wtih the band and the dancing people behind him.
explanation_2: man looking down as a band and dancing people form behind him was established in the first sentence
explanation_3: The man is in a band and people are dancing behind him.
premise_logic: exists e1 e2 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6.(behind(e2,x1) & n_male(x1) & Theme(e2,x6) & Actor(e2,x4) & v_dance(e2) & n_people(x6) & with(x4,x5) & n_shirt(x5) & a_plain(s5) & Theme(s5,x5) & n_man(x4) & a_young(s4) & Theme(s4,x4) & a_down(s3) & Manner(e1,s3) & with(e1,x3) & n_band(x3) & Actor(e1,x1) & v_look(e1) & with(x1,x2) & n_shirt(x2) & a_plain(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 e3 e2 s1 s2 x1 x2 x3 x4 x5 x6.(a_behind(s2) & Manner(e3,s2) & Theme(e3,x4) & Actor(e3,x1) & v_form(e3) & n_male(x4) & a_down(s1) & Manner(e1,s1) & at(e1,x3) & subset_of(x6,x3) & n_people(x6) & Actor(e2,x6) & v_dance(e2) & subset_of(x4,x3) & as(x4,x5) & n_band(x5) & n_thing(x4) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_man(x1))