| http://www.w3.org/ns/prov#value | - On October 2, 2012, we entered into the Right of First Negotiation Agreement (the ???ROFN Agreement???) with Celgene, one of the selling stockholders, pursuant to which we granted Celgene a right of first negotiation to the license, sale, assignment, transfer or other disposition by us of any material portion of intellectual property (including patents and trade secrets) or other assets related to
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