The man is swimming in the ocean.
The man is swimming fast in the ocean.
It's not apparent he's moving fast.
exists e1 x1 x2.(n_ocean(x2) & n_man(x1) & in(e1,x2) & Actor(e1,x1) & v_swim(e1))
exists e1 s1 x1 x2.(n_ocean(x2) & n_man(x1) & in(e1,x2) & a_fast(s1) & Manner(e1,s1) & Actor(e1,x1) & v_swim(e1))