Garden is related to Green. Green is related to Go. Go is related to Race. Race is related to Athletic. 
Radiation can be Toxic. Toxic is related to Smoke. Smoke is related to Coal. Coal is related to Burning. 
Garden <--RelatedTo--> Green <--RelatedTo--> Go <--RelatedTo--> Race <--RelatedTo--> Athletic 
Radiation --HasProperty--> Toxic <--RelatedTo--> Smoke <--RelatedTo--> Coal <--RelatedTo--> Burning 