premise: Archaeologists are on the ground digging for something.
hypothesis: someone is digging in the ground at a new dig sight
explanation_1: Just because the archaeologists are on the ground digging for something doesn't mean it is a new dig sight. It might be the same site they've been digging in for the past 3 weeks.
premise_logic: exists p1 x1 x2.(n_ground(x2) & exists e1 x3 x4.(on(x1,x2) & for(e1,x4) & n_thing(x4) & Actor(e1,x3) & v_dig(e1) & (x2 = x3)) & n_archaeologist(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(n_ground(x2) & at(e1,x3) & n_sight(x3) & of(x3,x4) & n_dig(x4) & a_new(s1) & Theme(s1,x3) & in(e1,x2) & Actor(e1,x1) & v_dig(e1) & n_person(x1))
premise_sim: exists x1 x2.(n_ground(x2) & n_archaeologist(x1) & exists e1 x3 x4.(v_dig(e1) & on(x1,x2) & n_thing(x4) & for(e1,x4) & Actor(e1,x3) & (x2 = x3)))
hypothesis_sim: exists e1 s1 x1 x2 x3 x4.(v_dig(e1) & of(x3,x4) & n_sight(x3) & n_person(x1) & n_ground(x2) & n_dig(x4) & in(e1,x2) & at(e1,x3) & a_new(s1) & Theme(s1,x3) & Actor(e1,x1))