Reader is derived from Read. Map can be Read. 
Doubt is a synonym of Hesitate. Hesitate is related to Pause. Pause is related to Command. Command is related to Control. 
Reader --DerivedFrom--> Read <--ReceivesAction-- Map 
Doubt <--Synonym--> Hesitate <--RelatedTo--> Pause <--RelatedTo--> Command <--RelatedTo--> Control 