Operator is a type of Businessman. Operator is related to Add. Add is related to Operation. Operation is related to Desert. 
Sight is related to Cloud. Cloud is related to Phenomenon. 
Businessman <--IsA-- Operator <--RelatedTo--> Add <--RelatedTo--> Operation <--RelatedTo--> Desert 
Sight <--RelatedTo--> Cloud <--RelatedTo--> Phenomenon 