Spot is a synonym of Dot. Dot is related to Web. Web is related to Silk. Silk is related to Japanese. 
Safety is a type of Goal. Goal is related to Field. 
Spot <--Synonym--> Dot <--RelatedTo--> Web <--RelatedTo--> Silk <--RelatedTo--> Japanese 
Safety --IsA--> Goal <--RelatedTo--> Field 