Weekly is related to Grass. Grass is related to Content. Content is related to Calm. Calm is related to Lake. 
Dark is a different concept from Bright. Bright is a synonym of Encouraging. Encouraging is related to Helpful. 
Weekly <--RelatedTo--> Grass <--RelatedTo--> Content <--RelatedTo--> Calm <--RelatedTo--> Lake 
Dark <--DistinctFrom--> Bright <--Synonym--> Encouraging <--RelatedTo--> Helpful 