xsd:string Under some Condition, usually left implicit, a Duty needs to be fulfilled by a Responsible_party. If the Duty is not performed, there may be some undesirable Consequence for the Responsible_party, which may or may not be stated overtly. Compare this frame to the Being_obligated frame. It would behoove us to comprehend and personalize what Jesus had to tell his disciples Fressed too much at the obligatory BBQ. INI When I was in HS, marching band was mandatory in order to participate in any of the other ensembles INI Should insurance be compulsory?