A young group of black belt boys standing in a straight line.
They are at school
Just because people are in line doesn't mean that they are in school.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x5) & n_line(x5) & a_straight(s3) & Theme(s3,x5) & Actor(e1,x4) & v_stand(e1) & (x1 = x4) & of(x1,x2) & n_boy(x2) & of(x2,x3) & n_belt(x3) & a_black(s2) & Theme(s2,x2) & n_group(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1.(n_thing(x1) & exists x2.(at(x1,x2) & n_school(x2)))