premise: Two men, each wearing a white tee-shirt and headphones make adjustments to a machine while shaded by a dark umbrella-like contraption.
hypothesis: Men in matching shirts working on a machine.
explanation_1: The man who is making adjustments to a machine is also called working on a machine. That way you know what he is doing to the machine.
explanation_2: working is a more informal way of saying making adjustments
explanation_3: If men make adjustments to a machine, then men are working on a machine. Also, men in matching shirts is a rephrasing of two men each wearing a white tee-shirt.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6 x7.(by(e1,x7) & n_contraption(x7) & a_umbrella-like(s2) & Theme(s2,x7) & a_dark(s1) & Theme(s1,x7) & while(e1,x6) & n_shade(x6) & Theme(e1,x4) & Actor(e1,x1) & v_make(e1) & to(x4,x5) & n_machine(x5) & n_adjustment(x4) & rel(x1,x2) & subset_of(x3,x2) & n_headphone(x3) & all x8.(n_thing(x8) -> exists e2 s3 x9 x10.(subset_of(x8,x2) & Theme(e2,x10) & Actor(e2,x9) & v_wear(e2) & n_tee-shirt(x10) & a_white(s3) & Theme(s3,x10) & (x8 = x9))) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & on(e2,x4) & n_machine(x4) & Actor(e2,x3) & v_work(e2) & (x2 = x3) & n_shirt(x2) & Actor(e1,x2) & v_match(e1) & n_man(x1))