you are likely to find Ocean in/at/on Beach. Ocean is related to River. River is related to Movement. 
Sure is a synonym of Certain. Certain is related to Thinking. Thinking can be used for Reason. Reason is related to Logical. 
Beach <--AtLocation-- Ocean <--RelatedTo--> River <--RelatedTo--> Movement 
Sure <--Synonym--> Certain <--RelatedTo--> Thinking --UsedFor--> Reason <--RelatedTo--> Logical 