Material is related to Paint. Paint is related to Dry. 
Smoke can be Dangerous. Smoke is related to Plant. Plant is related to Board. Board is related to Airplane. 
Material <--RelatedTo--> Paint <--RelatedTo--> Dry 
Dangerous <--HasProperty-- Smoke <--RelatedTo--> Plant <--RelatedTo--> Board <--RelatedTo--> Airplane 