Require is a synonym of Drive. Drive is a synonym of Approach. Access is a type of Approach. Access is related to Allow. 
Material is related to Song. Song is related to Stop. Stop is related to Signal. Indicator is a type of Signal. 
Require <--Synonym--> Drive <--Synonym--> Approach <--IsA-- Access <--RelatedTo--> Allow 
Material <--RelatedTo--> Song <--RelatedTo--> Stop <--RelatedTo--> Signal <--IsA-- Indicator 