Head is a synonym of Subject. Subject is related to Psychology. Psychology is related to Ill. 
Information is a type of Message. you are likely to find Information in/at/on Internet. Internet have Connection. Connection is a type of Supplier. 
Head <--Synonym--> Subject <--RelatedTo--> Psychology <--RelatedTo--> Ill 
Message <--IsA-- Information --AtLocation--> Internet --HasA--> Connection --IsA--> Supplier 