(p)
simple_container_type : map_type
                             | list_type
                             | set_type
simple_container_type : map_type
                             | list_type
                             | set_type
simple_container_type : map_type | list_type | set_type
def p_simple_container_type(p):
    '''simple_container_type : map_type
                             | list_type
                             | set_type'''
    p[0] = p[1]
def p_simple_container_type ( p ) : p [ 0 ] = p [ 1 ]