Four people are sitting on blue and green couches, while a fifth man sitting aside looks on, underneath a sprawling red tree.
The people are family.
Sitting on couches together doesn't necessarily mean you're a family.
exists e1 p1 s1 s2 x1 x2.(exists e3 e4 e2 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 p1 x1.(n_people(x1) & exists x2.((x1 = x2) & n_family(x2)))