Adoption is a type of Blessing. Blessing is related to Gift. Gift is the opposite of Tax. 
Undertake is a synonym of Attempt. Contribution is a type of Attempt. Contribution is related to Donate. 
Adoption --IsA--> Blessing <--RelatedTo--> Gift <--Antonym--> Tax 
Undertake <--Synonym--> Attempt <--IsA-- Contribution <--RelatedTo--> Donate 