Willing is related to Voluntary. Voluntary is related to Conscious. Conscious is a synonym of Aware. 
Contrast is a type of Scope. Scope is a synonym of Telescope. Telescope is related to Pole. Boom is a type of Pole. 
Willing <--RelatedTo--> Voluntary <--RelatedTo--> Conscious <--Synonym--> Aware 
Contrast --IsA--> Scope <--Synonym--> Telescope <--RelatedTo--> Pole <--IsA-- Boom 