One bicyclist runs along side her bike, while another rides up behind.
A bicyclist performs open heart surgery on another cyclist.
The bicyclist can't run along side her bike and perform open heart surgery at the same time.
exists e1 p1 s1 x1 x2 x3.(exists e2 s2 s3 x4.(a_behind(s3) & Manner(e2,s3) & a_up(s2) & Manner(e2,s2) & Actor(e2,x4) & v_ride(e2) & n_thing(x4)) & while(e1,p1) & along(e1,x2) & n_bike(x2) & a_her(s1) & Theme(s1,x2) & of(x2,x3) & n_side(x3) & Actor(e1,x1) & v_run(e1) & n_bicyclist(x1) & card_eq_1(x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_cyclist(x4) & on(e1,x5) & n_cyclist(x5) & -(x5 = x4) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_surgery(x2) & of(x2,x3) & n_heart(x3) & a_open(s1) & Theme(s1,x2) & n_bicyclist(x1))