Two students having a conversation on the other side of a concrete wall, which has a common sitting are on the other side.
Two people are talking.
Students are people, and having a conversation requires talking.
exists e1 e3 e2 p1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(-(x9 = x9) & n_side(x9) & -(x4 = x4) & n_side(x4) & on(x1,x9) & Theme(e3,x3) & Actor(e3,x2) & v_have(e3) & on(x3,x4) & of(x4,x5) & Theme(e2,x7) & Actor(e2,x6) & v_have(e2) & Actor(e1,x8) & v_sit(e1) & (x7 = x8) & n_common(x7) & (x5 = x6) & n_wall(x5) & a_concrete(s1) & Theme(s1,x5) & n_conversation(x3) & (x1 = x2) & n_student(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_talk(e1) & n_people(x1) & card_eq_2(x1))