Type is related to Property. Property is related to Ownership. Ownership is related to Adopt. 
Volunteer is a synonym of Offer. Offer is related to Donate. Donate is etymologically related to Donation. Donation is related to Donor. 
Type <--RelatedTo--> Property <--RelatedTo--> Ownership <--RelatedTo--> Adopt 
Volunteer <--Synonym--> Offer <--RelatedTo--> Donate --EtymologicallyRelatedTo--> Donation <--RelatedTo--> Donor 