Workers in bright yellow and red vests are cleaning windows outside a building.
A group of people are gathered to say happy birthday to a friend.
PEOPLE CANNOT BE CLEANING WINDOWS AS THEY SAY HAPPY BIRTHDAY TO A FRIEND.
exists e1 s1 s2 s3 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_clean(e1) & outside(x3,x4) & n_building(x4) & n_window(x3) & in(x1,x2) & n_vest(x2) & a_red(s3) & Theme(s3,x2) & a_yellow(s2) & Theme(s2,x2) & a_bright(s1) & Theme(s1,x2) & n_worker(x1))
exists e1 p1 x1 x2.(Recipient(e1,p1) & Topic(e1,x1) & v_gather(e1) & exists e2 s1 x3 x4.(to(e2,x4) & n_friend(x4) & Theme(e2,x3) & Actor(e2,x1) & v_say(e2) & n_birthday(x3) & a_happy(s1) & Theme(s1,x3)) & of(x1,x2) & n_people(x2) & n_group(x1))