People on the sand looking up at a white heart drawn by a jet in the blue sky.
A group of people admiring air art.
People on the sand are not necessarily a group and looking up does not necessarily mean admiring.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6.(n_sky(x6) & a_blue(s2) & Theme(s2,x6) & n_sand(x2) & a_up(s3) & Manner(e1,s3) & at(e1,x3) & in(e2,x6) & Actor(e2,x5) & n_jet(x5) & Theme(e2,x4) & v_draw(e2) & (x3 = x4) & n_heart(x3) & a_white(s1) & Theme(s1,x3) & Actor(e1,x1) & v_look(e1) & on(x1,x2) & n_people(x1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_admire(e1) & n_art(x4) & of(x4,x5) & n_air(x5) & (x2 = x3) & n_people(x2) & n_group(x1))