People strolling in a mall with colorful decorations hanging from the ceiling.
There are people in the mall.
In both sentence people are in mall.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(n_ceiling(x6) & a_topic(x1) & in(e1,x3) & with(x3,x4) & from(e2,x6) & Actor(e2,x5) & v_hang(e2) & (x4 = x5) & n_decoration(x4) & a_colorful(s1) & Theme(s1,x4) & n_mall(x3) & Actor(e1,x2) & v_stroll(e1) & (x1 = x2) & n_people(x1))
exists p1 x1 x2.(n_mall(x2) & in(p1,x2) & exists x3.((x1 = x3) & n_people(x3)))