Tobacco would make you want to Spit. one thing you do when you Spit is Leave. Leave is a synonym of Result. Result is related to Testing. 
Relative is related to Uncle. Uncle is related to Dad. Dad is related to Parent. Parental is derived from Parent. 
Tobacco --CausesDesire--> Spit --HasSubevent--> Leave <--Synonym--> Result <--RelatedTo--> Testing 
Relative <--RelatedTo--> Uncle <--RelatedTo--> Dad <--RelatedTo--> Parent <--DerivedFrom-- Parental 