Steel is related to Strong. Strong is related to Stretch. Stretch is related to Running. Running is related to Candidate. 
Volume is a type of Quantity. Volume is related to Low. 
Steel <--RelatedTo--> Strong <--RelatedTo--> Stretch <--RelatedTo--> Running <--RelatedTo--> Candidate 
Quantity <--IsA-- Volume <--RelatedTo--> Low 