Pet is related to Familiar. Familiar is similar to Close. 
Organizational is related to Chart. Chart is a synonym of Map. Map is related to Board. Board is related to Plant. 
Pet <--RelatedTo--> Familiar <--SimilarTo--> Close 
Organizational <--RelatedTo--> Chart <--Synonym--> Map <--RelatedTo--> Board <--RelatedTo--> Plant 