@prefix ex: <http://example.org/ex#>.


_:node_4_1 {
    _:node_9_1 a ex:Policy.
    _:node_9_1 ex:target (_:node_1_1 _:node_2_1 _:node_3_1).
    _:node_13_1 a ex:RemovalDuty.
    _:node_13_1 ex:after "P1M".
    _:node_9_1 ex:duty _:node_13_1.
}
