May is related to Red. Red is related to Lip. Lip can be used for Speak. Speak is related to Protest. 
Block is related to Wood. Wood is a synonym of Timber. 
May <--RelatedTo--> Red <--RelatedTo--> Lip --UsedFor--> Speak <--RelatedTo--> Protest 
Block <--RelatedTo--> Wood <--Synonym--> Timber 