Four people are sitting outside a white vehicle in front of several items.
A group of people are sitting outside around a campfire near a van down by the river.
A group can have more or less than four people. The group could be outside of any type of vehicle besides a van. The vehicle is outside and can be many places besides by the river.
exists e1 s1 s2 x1 x2 x3 x4.(outside(e1,x2) & in(x2,x3) & of(x3,x4) & n_item(x4) & a_several(s2) & Theme(s2,x4) & n_front(x3) & n_vehicle(x2) & a_white(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_4(x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_river(x5) & by(e1,x5) & a_down(s1) & Manner(e1,s1) & around(e1,x3) & near(x3,x4) & n_van(x4) & n_campfire(x3) & r_outside(e1) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))