Proportion is related to Measurement. Measurement is related to Hour. Hour is a different concept from Minute. Minute is related to Tie. 
Timber is related to Cut. Cut is related to Slide. 
Proportion <--RelatedTo--> Measurement <--RelatedTo--> Hour <--DistinctFrom--> Minute <--RelatedTo--> Tie 
Timber <--RelatedTo--> Cut <--RelatedTo--> Slide 