Act is related to Drama. Drama is a synonym of Play. 
you are likely to find Bomb in/at/on Army. Army is related to Force. Force is related to Stretch. Stretch is related to Flexibility. 
Act <--RelatedTo--> Drama <--Synonym--> Play 
Bomb --AtLocation--> Army <--RelatedTo--> Force <--RelatedTo--> Stretch <--RelatedTo--> Flexibility 