A cyclist drinks water.
A person drinks water.
A Cyclist is a person and the person drinks water
exists x1 x2 x3.(a_topic(x1) & n_water(x1) & of(x1,x3) & n_drink(x3) & of(x1,x2) & n_cyclist(x2))
exists x1 x2 x3.(a_topic(x1) & Time(x1,x3) & n_water(x3) & n_drink(x1) & of(x1,x2) & n_person(x2))