Average is related to Point. Point is a type of Characteristic. Characteristic is related to Manner. 
Aids is a type of Virus. Virus can cause/lead to Infection. Infection is a type of Disease. Disease is related to Condition. 
Average <--RelatedTo--> Point --IsA--> Characteristic <--RelatedTo--> Manner 
Aids --IsA--> Virus --Causes--> Infection --IsA--> Disease <--RelatedTo--> Condition 