Indication is a type of Advice. Advice is related to Ask. Ask is related to Order. Order is related to Request. 
Foot is a type of Organ. Football is derived from Foot. Half is part of Football. 
Indication --IsA--> Advice <--RelatedTo--> Ask <--RelatedTo--> Order <--RelatedTo--> Request 
Organ <--IsA-- Foot <--DerivedFrom-- Football <--PartOf-- Half 