A baseball player tries to slide into third base while another player blocks him, as an umpire approaches.
A baseball player is up to bat.
An umpire would not be approaching and a player would not be approaching while a player is up to bat.
exists e1 p1 x1 x2 x4.(Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 s1 s2 s3 x3 x5 x6 x7.(as(e2,x7) & n_approach(x7) & a_umpire(s3) & Theme(s3,x7) & a_he(s2) & Manner(e2,s2) & while(e2,x5) & n_block(x5) & of(x5,x6) & n_player(x6) & -(x5 = x4) & into(e2,x3) & n_base(x3) & a_third(s1) & Theme(s1,x3) & Actor(e2,x1) & v_slide(e2)) & n_block(x4) & of(x4,x1) & n_player(x1) & n_player(x1) & of(x1,x2) & n_baseball(x2))
exists s1 x1 x2 x3.(to(s1,x3) & n_bat(x3) & Theme(s1,x1) & a_up(s1) & n_player(x1) & of(x1,x2) & n_baseball(x2))