Sole is etymologically related to Soil. Soil is a synonym of Land. you are likely to find Bulb in/at/on Land. Bulb is a type of Part. 
Influential is similar to Powerful. Powerful is related to King. King is related to Administrator. Administrator is a synonym of Supervisor. 
Sole --EtymologicallyRelatedTo--> Soil <--Synonym--> Land <--AtLocation-- Bulb --IsA--> Part 
Influential <--SimilarTo--> Powerful <--RelatedTo--> King <--RelatedTo--> Administrator <--Synonym--> Supervisor 