Part is related to Arm. Arm is related to Swim. Swim is related to Competition. 
Exception is a type of Situation. Poverty is a type of Situation. Poverty is related to Condition. 
Part <--RelatedTo--> Arm <--RelatedTo--> Swim <--RelatedTo--> Competition 
Exception --IsA--> Situation <--IsA-- Poverty <--RelatedTo--> Condition 