Sight is a synonym of Spot. Spot is related to Nest. Nest is related to Sleep. 
Productive is a synonym of Fat. Fat is related to Thick. Thick is related to Cream. 
Sight <--Synonym--> Spot <--RelatedTo--> Nest <--RelatedTo--> Sleep 
Productive <--Synonym--> Fat <--RelatedTo--> Thick <--RelatedTo--> Cream 