Birthday is related to Song. Song is related to Poem. Poem can be used for Writing. Writing is related to Intellectual. 
Dying can cause/lead to End. End is a synonym of Limit. Limit is related to Speed. Speed is related to Race. 
Birthday <--RelatedTo--> Song <--RelatedTo--> Poem --UsedFor--> Writing <--RelatedTo--> Intellectual 
Dying --Causes--> End <--Synonym--> Limit <--RelatedTo--> Speed <--RelatedTo--> Race 