you are likely to find Sin in/at/on Confession. Sin is related to Deadly. 
Flexible is a synonym of Variable. Variable is part of Formula. Formula is a synonym of Convention. Convention is a type of Station. 
Confession <--AtLocation-- Sin <--RelatedTo--> Deadly 
Flexible <--Synonym--> Variable --PartOf--> Formula <--Synonym--> Convention --IsA--> Station 