A man in a white shirt and black pants looks on as other people are seated at tables beneath green umbrellas.
The people are seated at table while a man looks on.
A man looks on as other people are seated at the table does not imply people are seated at the table while the man looks on.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_people(x6) & r_on(e1) & as(e1,x5) & beneath(e2,x9) & n_umbrella(x9) & a_green(s3) & Theme(s3,x9) & at(e2,x8) & n_table(x8) & Theme(e2,x7) & v_seat(e2) & (x5 = x7) & -(x5 = x6) & n_people(x5) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & subset_of(x4,x2) & n_pants(x4) & a_black(s2) & Theme(s2,x4) & subset_of(x3,x2) & n_shirt(x3) & a_white(s1) & Theme(s1,x3) & n_man(x1))
exists e1 p1 x1 x2.(n_people(x1) & exists e2 p2 x3.(exists s1.(Theme(s1,x3) & a_on(s1)) & Topic(e2,p2) & Actor(e2,x3) & v_look(e2) & n_man(x3)) & while(e1,p1) & at(e1,x2) & n_table(x2) & Theme(e1,x1) & v_seat(e1))