A group of young people are wearing red and green shirts in front of a sign that says "lift".
There are young people in front of a sign.
young people in front of a sign is repeated in both sentences.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x3) & Actor(e2,x1) & v_wear(e2) & in(x3,x4) & of(x4,x5) & Theme(e1,x7) & Actor(e1,x6) & v_say(e1) & n_lift(x7) & (x5 = x6) & n_sign(x5) & n_front(x4) & n_shirt(x3) & a_green(s3) & Theme(s3,x3) & a_red(s2) & Theme(s2,x3) & of(x1,x2) & n_people(x2) & a_young(s1) & Theme(s1,x2) & n_group(x1))
exists p1 x1 x2 x3.(in(p1,x2) & of(x2,x3) & n_sign(x3) & n_front(x2) & exists s1 x4.((x1 = x4) & n_people(x4) & a_young(s1) & Theme(s1,x4)))