Current is related to Relevant. Relevant is a synonym of Significant. Significant is similar to Considerable. 
Bone is related to Joint. Joint is a type of Supply. Heat is a type of Supply. Heat is a synonym of Fever. 
Current <--RelatedTo--> Relevant <--Synonym--> Significant <--SimilarTo--> Considerable 
Bone <--RelatedTo--> Joint --IsA--> Supply <--IsA-- Heat <--Synonym--> Fever 