Two students having a conversation on the other side of a concrete wall, which has a common sitting are on the other side.
Two students in matching shirts are talking.
Students are not implied to be wearing matching shirts.
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 s1 x1 x2.(Actor(e1,x1) & v_talk(e1) & in(x1,x2) & n_shirt(x2) & a_matching(s1) & Theme(s1,x2) & n_student(x1) & card_eq_2(x1))