A man wearing a belt, a tan jacket and brown shoes is walking next to a woman with a brown purse, a black outfit, and sunglasses on a sidewalk.
The two people are a couple.
Just because two people, a man and a woman, are walking next to each other does not mean that they are a couple. They could be friends or they could be related or they could be co-workers or they could be complete strangers who happen to be walking together.
exists e1 e3 e4 e2 s1 s2 s3 s4 s5 s6 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17.(on(e4,x17) & n_sidewalk(x17) & Actor(e4,x11) & v_sunglass(e4) & Theme(e3,x13) & Actor(e3,x12) & v_wear(e3) & rel(x13,x14) & subset_of(x16,x14) & n_shoe(x16) & a_brown(s6) & Theme(s6,x16) & subset_of(x15,x14) & n_jacket(x15) & a_tan(s5) & Theme(s5,x15) & n_belt(x13) & (x11 = x12) & n_man(x11) & with(e2,x8) & subset_of(x10,x8) & n_outfit(x10) & a_black(s4) & Theme(s4,x10) & subset_of(x9,x8) & n_purse(x9) & a_brown(s3) & Theme(s3,x9) & to(e2,x7) & n_woman(x7) & r_next(e2) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & rel(x3,x4) & subset_of(x6,x4) & n_shoe(x6) & a_brown(s2) & Theme(s2,x6) & subset_of(x5,x4) & n_jacket(x5) & a_tan(s1) & Theme(s1,x5) & n_belt(x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_people(x1) & card_eq_2(x1) & exists x2.((x1 = x2) & n_couple(x2)))