premise: Six seated men converse and one man fiddles with an interesting contraption.
hypothesis: Several men are gathered.
explanation_1: If six men are seated and conversing with one fiddling, it shows that several men have gathered to converse.  One man gets bored and fiddles with a contraption.
explanation_2: people have to gather together to converse
explanation_3: Six men qualifies as several.
premise_logic: exists e2 e1 e3 s1 x1 x2 x3.(with(e3,x3) & n_contraption(x3) & a_interesting(s1) & Theme(s1,x3) & Actor(e3,x2) & v_fiddle(e3) & n_man(x2) & card_eq_1(x2) & Actor(e2,x1) & v_converse(e2) & n_man(x1) & Theme(e1,x1) & v_seat(e1) & card_eq_6(x1))
hypothesis_logic: exists e1 s1 x1.(Theme(e1,x1) & v_gather(e1) & n_man(x1) & a_several(s1) & Theme(s1,x1))
premise_sim: exists e2 e1 e3 s1 x1 x2 x3.(with(e3,x3) & v_seat(e1) & v_fiddle(e3) & v_converse(e2) & n_man(x2) & n_man(x1) & n_contraption(x3) & card_eq_6(x1) & card_eq_1(x2) & a_interesting(s1) & Theme(s1,x3) & Theme(e1,x1) & Actor(e3,x2) & Actor(e2,x1))
hypothesis_sim: exists e1 s1 x1.(v_gather(e1) & n_man(x1) & a_several(s1) & Theme(s1,x1) & Theme(e1,x1))