Identify is related to Flag. Flag is related to National. 
Investor is derived from Invest. Invest is etymologically related to Investigate. Investigate is a synonym of Examine. Examine is related to Observe. 
Identify <--RelatedTo--> Flag <--RelatedTo--> National 
Investor --DerivedFrom--> Invest --EtymologicallyRelatedTo--> Investigate <--Synonym--> Examine <--RelatedTo--> Observe 