. . "An excess umbrella policy is also procured as part of the package.Additional Insured???The following are covered as part of the conference center operations: Tenants of propertyMortgagee, assignee, or receiverVolunteersCollege programs and activities including faculty and studentsExclusions???This policy does not cover any loss resulting from:TerrorismWarNuclear, chemical, or biological hazardArso" . .