a person with a multicolored umbrella is standing looking at a building.
The umbrella doesn't only have one color.
The word "multicolored" means that the umbrella is multiple colors, so it is obvious that the umbrella doesn't only have one color.
exists e1 e2 s1 x1 x2 x3.(for(e1,e2) & at(e2,x3) & n_building(x3) & Actor(e2,x1) & v_look(e2) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & n_umbrella(x2) & a_multicolored(s1) & Theme(s1,x2) & n_person(x1))
exists x1.(n_umbrella(x1) & -exists e1 s1 x2.(a_only(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_color(x2) & card_eq_1(x2)))