Church is related to Organ. Organ is related to Brain. Brain is related to Stroke. 
Technical is a synonym of Mechanical. Mechanical is related to Car. Car is related to Emission. 
Church <--RelatedTo--> Organ <--RelatedTo--> Brain <--RelatedTo--> Stroke 
Technical <--Synonym--> Mechanical <--RelatedTo--> Car <--RelatedTo--> Emission 