A cyclist who is resting and rehydrating himself.
A cyclist is resting and drinking Gatorade.
Dehydrating can be drinking anything, not just Gatorade.
exists e1 e2 x1 x2 x3.(a_topic(x1) & Theme(e2,x1) & Actor(e2,x3) & v_rehydrate(e2) & n_male(x1) & (x1 = x3) & Actor(e1,x2) & v_rest(e1) & (x1 = x2) & n_cyclist(x1))
exists e1 e2 x1 x2 x3.(ne_geo_gatorade(x3) & Theme(e2,x3) & Actor(e2,x2) & v_drink(e2) & n_cyclist(x2) & Actor(e1,x1) & v_rest(e1) & n_cyclist(x1))