Noise is a different concept from Silence. Silence is related to Condition. Condition is related to Rain. Rain is a type of Sequence. 
Travel is related to Adventure. Adventure is related to Risk. 
Noise <--DistinctFrom--> Silence <--RelatedTo--> Condition <--RelatedTo--> Rain --IsA--> Sequence 
Travel <--RelatedTo--> Adventure <--RelatedTo--> Risk 