A group of boys are watching a boy dressed in black with blue socks is kicking a soccer ball in the air on the sand.
Nobody is watching
Once cannot have nobody watching when a group is watching at the same time.
exists e3 e2 e1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11.(n_sand(x11) & n_air(x10) & in(e3,x10) & on(x10,x11) & Theme(e3,x8) & Actor(e3,x1) & v_kick(e3) & n_ball(x8) & of(x8,x9) & n_soccer(x9) & of(x1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_watch(e2) & with(e1,x7) & n_sock(x7) & a_blue(s2) & Theme(s2,x7) & Theme(e1,s1) & Theme(s1,x6) & a_black(s1) & Theme(e1,x5) & v_dress(e1) & (x4 = x5) & n_boy(x4) & (x2 = x3) & n_boy(x2) & n_group(x1))
-exists e1 x1.(Actor(e1,x1) & v_watch(e1) & n_person(x1))