The man is standing on the street surounded by buildings.
A man is standing on the street amongst several buildings
Surrounded by and amongst mean the same thing.
exists e1 e2 x1 x2 x3 x4.(n_street(x2) & n_man(x1) & on(e1,x2) & Actor(e2,x4) & n_building(x4) & Theme(e2,x3) & v_suround(e2) & (x2 = x3) & Actor(e1,x1) & v_stand(e1))
exists e1 s1 x1 x2 x3.(n_street(x2) & amongst(e1,x3) & n_building(x3) & a_several(s1) & Theme(s1,x3) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))