A man stands in a church while people around him watch.
A man is praying at a church while with his family
People can stand in church without praying.  The people around him may not be his family.  They may be just friends.
exists e2 e1 x1 x2 x3 x4.(while(e1,x3) & Theme(e2,x4) & Actor(e2,x1) & v_watch(e2) & (x3 = x4) & n_male(x1) & r_around(x3) & n_people(x3) & in(e1,x2) & n_church(x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 x1 x2 x3.(with(e1,x3) & n_family(x3) & of(x3,x1) & n_male(x1) & r_while(e1) & at(e1,x2) & n_church(x2) & Actor(e1,x1) & v_pray(e1) & n_man(x1))