Inside is related to Balloon. Balloon is a type of Envelope. you are likely to find Bill in/at/on Envelope. 
Shoulder is a type of Raise. Raise is related to Work. one thing you do when you Work is Sweat. one thing you do when you Money is Sweat. 
Inside <--RelatedTo--> Balloon --IsA--> Envelope <--AtLocation-- Bill 
Shoulder --IsA--> Raise <--RelatedTo--> Work --HasSubevent--> Sweat <--HasSubevent-- Money 