Assertion: prerogative's right | /r/HasProperty | established by law
Facets:
value: by contractual obligation
type: MANNER
Source sentences:
text: Exclusive rights can be established by law or by contractual obligation, but the scope of enforceability will depend upon the extent to which others are bound by the instrument establishing the exclusive right; thus in the case of contractual rights, only persons that are parties to a contract will be affected by the exclusivity.