Four people are sitting on blue and green couches, while a fifth man sitting aside looks on, underneath a sprawling red tree.
Five people are sitting on couches.
If a man is sitting aside underneath a sprawling red tree, he is unlikely to be sitting on a couch and as such it cannot be claimed that all five people are sitting on couches.
exists e1 p1 s1 s2 x1 x2.(exists e2 e4 e3 s3 s4 s5 s6 x3 x4 x5.(underneath(e3,x5) & n_tree(x5) & a_red(s6) & Theme(s6,x5) & Actor(e4,x5) & v_sprawl(e4) & a_on(s5) & Manner(e3,s5) & Actor(e3,x3) & v_look(e3) & a_aside(s4) & Manner(e2,s4) & Actor(e2,x4) & v_sit(e2) & (x3 = x4) & n_man(x3) & a_fifth(s3) & Theme(s3,x3)) & while(e1,p1) & on(e1,x2) & n_couch(x2) & a_green(s2) & Theme(s2,x2) & a_blue(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2.(on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_5(x1))