you are likely to find Chip in/at/on Casino. you are likely to find Entertainment in/at/on Casino. 
Uncertain is derived from Uncertainty. Uncertainty is related to Unknown. Unknown is a synonym of Strange. Strange is similar to Other. 
Chip --AtLocation--> Casino <--AtLocation-- Entertainment 
Uncertain --DerivedFrom--> Uncertainty <--RelatedTo--> Unknown <--Synonym--> Strange <--SimilarTo--> Other 