The hikers take a tandem leap while crossing the bridge.
The hikers are now at home, fast asleep.
The hikers cannot take a tandem leap at the same times as they are fast asleep.
exists e2 e1 x1 x2 x3 x4.(n_bridge(x4) & n_hiker(x1) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_cross(e2) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_leap(x2) & of(x2,x3) & n_tandem(x3))
exists p1 s1 s2 x1.(n_hiker(x1) & r_fast(p1) & a_asleep(s2) & Manner(p1,s2) & a_now(s1) & Manner(p1,s1) & exists x2.(at(x1,x2) & n_home(x2)))