A young guy is getting arrested.
Someone is getting arrested.
Sentence 1 is missing someone
exists e1 p1 s1 x1.(exists e2.(Theme(e2,x1) & v_arrest(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_guy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 x1.(exists e2.(Theme(e2,x1) & v_arrest(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1) & n_person(x1))