A young man is sitting next to the ornate building wall with the backpack on the ground and hiding his face in his hands.
A student is exhausted as he sits next to a wall with his backpack at his feet.
Not every young man is a student. Sitting does not mean you are exhausted. A backpack on the ground is not necessarily at his feet.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(n_hand(x8) & of(x8,x2) & n_male(x2) & n_male(x2) & n_face(x7) & of(x7,x2) & n_ground(x5) & n_backpack(x4) & n_wall(x2) & of(x2,x3) & n_building(x3) & a_ornate(s2) & Theme(s2,x2) & in(e2,x8) & Theme(e2,x7) & Actor(e2,x6) & v_hide(e2) & n_man(x6) & a_young(s3) & Theme(s3,x6) & on(e1,x5) & with(e1,x4) & to(e1,x2) & r_next(e1) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 x1 x3 x4.(exists e2 x1 x2.(at(e2,x4) & n_male(x1) & n_male(x1) & with(e2,x3) & to(e2,x2) & n_wall(x2) & r_next(e2) & Actor(e2,x1) & v_sit(e2)) & n_foot(x4) & of(x4,x1) & n_backpack(x3) & of(x3,x1) & n_male(x1) & as(e1,p1) & Theme(e1,x1) & v_exhaust(e1) & n_student(x1))