Wash is related to Activity. Activity is related to Ritual. Ritual is related to Religion. Christianity is a type of Religion. 
Timber is a synonym of Beam. you are likely to find Beam in/at/on Bridge. Bridge is related to Captain. Captain is related to Sir. 
Wash <--RelatedTo--> Activity <--RelatedTo--> Ritual <--RelatedTo--> Religion <--IsA-- Christianity 
Timber <--Synonym--> Beam --AtLocation--> Bridge <--RelatedTo--> Captain <--RelatedTo--> Sir 