Create on PUT and containment.

Hi,

My question is around the option to create a resource in response to a PUT
request and containment triples. The specification says:

> 5.2.4.1 LDP servers should not allow HTTP PUT to update a LDPC’s
containment triples; if the server receives such a request, it should
respond with a 409 (Conflict) status code...

What I am trying to understand is whether this statement means that LDP
servers should not allow the PUT request to update containment triples, but
still allows for the LDP server to add/update its own containment triples
or does this simply mean that a create-on-PUT request does not allow for
the creation of ANY containment triples?

cheers,
jared