Part is related to Lip. 
Reach is related to Destination. Destination is a type of Goal. Goal is a synonym of Ambition. Ambitious is etymologically related to Ambition. 
Part <--RelatedTo--> Lip 
Reach <--RelatedTo--> Destination --IsA--> Goal <--Synonym--> Ambition <--EtymologicallyRelatedTo-- Ambitious 