a man in a tan jacket is kissing a girl in a pink jacket on a city street as a yellow taxi passes by.
A couple is saying goodbye to each other.
A man and a girl are not necessarily assumed to be a couple.  Two people kissing are not assumed to be saying goodbye to each other.
exists e1 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8.(a_by(s4) & Manner(e1,s4) & Theme(e1,x3) & Actor(e1,x1) & v_kiss(e1) & in(x3,x4) & as(x4,x7) & n_pass(x7) & of(x7,x8) & n_taxi(x8) & a_yellow(s3) & Theme(s3,x7) & on(x4,x5) & n_street(x5) & of(x5,x6) & n_city(x6) & n_jacket(x4) & a_pink(s2) & Theme(s2,x4) & n_girl(x3) & in(x1,x2) & n_jacket(x2) & a_tan(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(all x3.(n_other(x3) -> to(e1,x3)) & Theme(e1,x2) & Actor(e1,x1) & v_say(e1) & n_goodbye(x2) & n_couple(x1))