Archaeologists digging out a site.
They are looking for dinosaurce
Just because they are digging at a site, doesn't mean they are looking for a dinosaur. They could be looking for ancient texts, etc.
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_out(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_dig(e1) & n_site(x3) & (x1 = x2) & n_archaeologist(x1))
exists e1 x1.(for(e1,x1) & n_dinosaurce(x1) & Actor(e1,x1) & v_look(e1) & n_thing(x1))