Three football players, #16 is throwing the football, #71 is blocking the other opponent.
Three people are playing sports.
Football players are people, and football is a sport. The number of players was identified as three.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(-(x5 = x5) & n_opponent(x5) & Theme(e2,x5) & Actor(e2,x4) & v_block(e2) & n_thing(x4) & card_eq_71(x4) & a_#(s2) & Theme(s2,x4) & r_three(e1) & rel(e1,x3) & n_player(x3) & of(x3,x2) & n_football(x2) & n_football(x2) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_date(x1) & a_date_day_16(x1) & a_date_day_16(x1) & a_#(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sport(x2) & n_people(x1) & card_eq_3(x1))