A group of people wearing name tags gather round in a conference room watching in front of them.
A group of people were at a conference for work.
Just because people are wearing name tags doesn't imply people were at a conference for work.
exists e3 e1 e2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(in(e2,x7) & in(e3,x10) & of(x10,x1) & n_thing(x1) & n_front(x10) & Actor(e3,x9) & v_watch(e3) & (x7 = x9) & n_room(x7) & of(x7,x8) & n_conference(x8) & Theme(e2,x6) & Actor(e2,x1) & v_gather(e2) & n_round(x6) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_tag(x4) & of(x4,x5) & n_name(x5) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1 x2.(exists x3 x4.(at(x1,x3) & for(x3,x4) & n_work(x4) & n_conference(x3)) & of(x1,x2) & n_people(x2) & n_group(x1))