Workout is related to Stretch. Stretch is related to Warm. Warm is a type of Change. 
Ridge is related to Trail. Trail is a type of Path. Path is related to Railroad. 
Workout <--RelatedTo--> Stretch <--RelatedTo--> Warm --IsA--> Change 
Ridge <--RelatedTo--> Trail --IsA--> Path <--RelatedTo--> Railroad 