Construction is related to Helmet. Helmet is related to Head. Head is a type of Direct. 
Take is a type of Interpret. Take is related to Eat. Eat is related to Birthday. 
Construction <--RelatedTo--> Helmet <--RelatedTo--> Head --IsA--> Direct 
Interpret <--IsA-- Take <--RelatedTo--> Eat <--RelatedTo--> Birthday 