Emission is related to Exhaust. Play is a type of Exhaust. Play is related to Ground. 
Disturbing is a form of Disturb. Disturb is a type of Affect. Affect is a synonym of Modify. Specialize is a type of Modify. 
Emission <--RelatedTo--> Exhaust <--IsA-- Play <--RelatedTo--> Ground 
Disturbing --FormOf--> Disturb --IsA--> Affect <--Synonym--> Modify <--IsA-- Specialize 