Two archaeologists digging out some archaeologist things.
One person digging alone.
There cannot be two people and one person digging simultaneously
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & a_out(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x2) & v_dig(e1) & n_thing(x3) & a_archaeologist(s1) & Theme(s1,x3) & (x1 = x2) & n_archaeologist(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(a_topic(x1) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x2) & v_dig(e1) & (x1 = x2) & n_person(x1) & card_eq_1(x1))