Clock can be used for Timing. Clock is related to Accuracy. 
Egg is related to Object. Object is related to Product. Product is related to Smoke. Smoke is related to Cancer. 
Timing <--UsedFor-- Clock <--RelatedTo--> Accuracy 
Egg <--RelatedTo--> Object <--RelatedTo--> Product <--RelatedTo--> Smoke <--RelatedTo--> Cancer 