premise: Two people performing an archaeological dig.
hypothesis: Some people are just watching.
explanation_1: Just because two people are performing an archaeological dig doesn't mean there are some people just watching. Both men could be working or one of them could be supervising.
premise_logic: exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_perform(e1) & n_dig(x3) & a_archaeological(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
hypothesis_logic: exists e1 s1 x1.(a_just(s1) & Manner(e1,s1) & Actor(e1,x1) & v_watch(e1) & n_people(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_perform(e1) & n_people(x1) & n_dig(x3) & card_eq_2(x1) & a_topic(x1) & a_archaeological(s1) & Theme(s1,x3) & Theme(e1,x3) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists e1 s1 x1.(v_watch(e1) & n_people(x1) & a_just(s1) & Manner(e1,s1) & Actor(e1,x1))