| http://www.w3.org/ns/prov#value | - The request from the second program is negotiable if the lock is an executing lock and the request is for a reading update lock or a writing lock, the lock is a reading shared lock and the request is for a reading update lock or a writing lock, the lock is a reading update lock and the request is for a reading lock or a writing lock, the lock is a writing immediate lock and the request is for an e
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