A man walks up to a red and yellow building to pay for gas on a gold but sunny day.
A man approaches a blue and green building.
The sentences alter the colors from red and yellow to blue and green.
exists e1 p1 s1 s2 x1 x2.(to(e1,x2) & n_building(x2) & a_yellow(s2) & Theme(s2,x2) & a_red(s1) & Theme(s1,x2) & r_up(e1) & Topic(e1,p1) & Actor(e1,x1) & v_walk(e1) & exists e2 s3 x3 x4 x5 x6.(on(e2,x4) & subset_of(x6,x4) & n_day(x6) & a_sunny(s3) & Theme(s3,x6) & subset_of(x5,x4) & n_gold(x5) & for(e2,x3) & n_gas(x3) & Actor(e2,x1) & v_pay(e2)) & n_man(x1))
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_approach(e1) & n_building(x2) & a_green(s2) & Theme(s2,x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))