Danger is related to Careful. Careful is similar to Particular. 
Operating is related to Chief. Chief is related to Importance. Significance is a type of Importance. Consequence is a type of Significance. 
Danger <--RelatedTo--> Careful <--SimilarTo--> Particular 
Operating <--RelatedTo--> Chief <--RelatedTo--> Importance <--IsA-- Significance <--IsA-- Consequence 