Two boys, one wearing a red and the other wearing a white shirt, play frisbee in a park.
A guitarist tunes up.
A guitarist is more than one person. people can not play frisbee and tune up simultaneously.
exists e1 e3 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_other(x6) & in(e3,x10) & n_park(x10) & Actor(e3,x1) & v_frisbee(e3) & rel(x1,x2) & rel(x2,x9) & n_play(x9) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & subset_of(x6,x4) & Theme(e1,x8) & Actor(e1,x7) & v_wear(e1) & n_shirt(x8) & a_white(s1) & Theme(s1,x8) & (x6 = x7) & subset_of(x5,x4) & n_red(x5) & (x2 = x3) & n_thing(x2) & card_eq_1(x2) & n_boy(x1) & card_eq_2(x1))
exists e1 s1 x1.(a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_tune(e1) & n_guitarist(x1))