Man in sandals and blue shirt is bent over water.
There is a man in a blue shirt bent over the bath tub.
Just because  Man in sandals and blue shirt is bent over water does not mean he is at the bath tub.
exists s1 s2 x1 x2 x3 x4 x5.(over(s2,x5) & n_water(x5) & Theme(s2,x1) & a_bent(s2) & in(x1,x2) & n_shirt(x4) & a_blue(s1) & Theme(s1,x4) & n_sandal(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_man(x1))
exists p1 x1 x5 x6.(n_tub(x5) & of(x5,x6) & n_bath(x6) & exists s1 x2 x3 x4.((x1 = x2) & in(x2,x3) & over(x3,x5) & n_bent(x3) & of(x3,x4) & n_shirt(x4) & a_blue(s1) & Theme(s1,x3) & n_man(x2)))