It appears they are setting up for the meet.
the people are working together
Sentence 1 is missing people working together
exists e2 e1 p1 x1 x2.(n_thing(x1) & n_thing(x1) & Actor(e2,x1) & v_meet(e2) & exists e3 s1 x3.(a_up(s1) & Manner(e3,s1) & for(e3,x3) & n_the(x3) & Actor(e3,x1) & v_set(e3)) & Topic(e1,p1) & Actor(e1,x2) & v_appear(e1) & (x1 = x2))
exists e1 s1 x1.(n_people(x1) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_work(e1))