Twin is a type of Sibling. Twin is a synonym of Similar. 
Occupation is derived from Occupy. Occupation is related to Builder. Builder is related to Architect. Architect is a synonym of Designer. 
Sibling <--IsA-- Twin <--Synonym--> Similar 
Occupy <--DerivedFrom-- Occupation <--RelatedTo--> Builder <--RelatedTo--> Architect <--Synonym--> Designer 