The blond man is sitting on a case at the beach waiting to take a picture of the sunset.
A man is on the beach with his family
A man taking pictures does not imply he is with his family.
exists e2 e1 p1 s1 x1 x2 x3 x5.(n_sunset(x5) & n_beach(x3) & n_man(x1) & a_blond(s1) & Theme(s1,x1) & for(e1,e2) & Topic(e2,p1) & Actor(e2,x1) & v_wait(e2) & exists e3 x4.(Theme(e3,x4) & Actor(e3,x1) & v_take(e3) & of(x4,x5) & n_picture(x4)) & at(e1,x3) & on(e1,x2) & n_case(x2) & Actor(e1,x1) & v_sit(e1))
exists p1 x1 x2 x3.(n_family(x3) & of(x3,x2) & n_male(x2) & n_beach(x2) & on(x1,x2) & with(x2,x3) & n_man(x1))