Interrupt is a type of Signal. Interrupt is a synonym of Disturb. Disturb is a synonym of Distract. 
Crucial is related to Essential. Essential is related to Blood. Blood is related to Wine. Wine is related to Keep. 
Signal <--IsA-- Interrupt <--Synonym--> Disturb <--Synonym--> Distract 
Crucial <--RelatedTo--> Essential <--RelatedTo--> Blood <--RelatedTo--> Wine <--RelatedTo--> Keep 