A person swims in a shallow turquoise sea toward an empty tethered rowboat.
The person is on vacation.
Swims in a shallow turquoise sea does not mean on vacation.
exists e1 s1 s2 s3 x1 x2 x3 x4.(in(e1,x2) & toward(x2,x4) & n_rowboat(x4) & a_tethered(s3) & Theme(s3,x4) & a_empty(s2) & Theme(s2,x4) & n_sea(x2) & of(x2,x3) & n_turquoise(x3) & a_shallow(s1) & Theme(s1,x2) & Actor(e1,x1) & v_swim(e1) & n_person(x1))
exists p1 x1.(n_person(x1) & exists x2.(on(x1,x2) & n_vacation(x2)))