Commodity is a type of Artifact. Block is a type of Artifact. Block is related to Hat. Hat is made of Cotton. 
Condition is a synonym of Accident. Accident is related to Burn. Alcohol can Burn. 
Commodity --IsA--> Artifact <--IsA-- Block <--RelatedTo--> Hat --MadeOf--> Cotton 
Condition <--Synonym--> Accident <--RelatedTo--> Burn <--CapableOf-- Alcohol 