Radiation is a type of Starting. Radiation is related to Fire. Fire is related to Force. Force is a type of Influence. 
Entry is related to Post. Post is related to Stop. Stop is related to Signal. 
Starting <--IsA-- Radiation <--RelatedTo--> Fire <--RelatedTo--> Force --IsA--> Influence 
Entry <--RelatedTo--> Post <--RelatedTo--> Stop <--RelatedTo--> Signal 