A person leans forward to catch a baseball while a runner comes close to the base.
People are on a baseball diamond.
A person and a runner and a runner are people.
exists e1 p1 s1 x1 x2 x5.(n_base(x5) & Topic(e1,p1) & exists e2 p2 x3.(exists e3 x4.(to(e3,x5) & r_close(e3) & Actor(e3,x4) & v_come(e3) & n_runner(x4)) & while(e2,p2) & Theme(e2,x3) & Actor(e2,x1) & v_catch(e2) & n_baseball(x3)) & a_forward(s1) & Manner(e1,s1) & Actor(e1,x2) & v_lean(e1) & n_person(x2) & n_person(x1))
exists p1 x1.(exists x2 x3.(on(x1,x2) & n_diamond(x2) & of(x2,x3) & n_baseball(x3)) & n_people(x1))