A crowd waves red and yellow flags.
A group of people are drinking in a tavern.
They either waves red and yellow flags or are drinking in a tavern.
exists s1 s2 s3 x1 x2 x3 x4.(a_topic(s1) & subset_of(x4,s1) & n_flag(x4) & a_yellow(s3) & Theme(s3,x4) & subset_of(x1,s1) & Theme(s2,x3) & a_red(s2) & (x1 = x3) & n_wave(x1) & of(x1,x2) & n_crowd(x2))
exists e1 x1 x2 x3.(in(e1,x3) & n_tavern(x3) & Actor(e1,x1) & v_drink(e1) & of(x1,x2) & n_people(x2) & n_group(x1))