Time is related to Mine. 
Tray is etymologically related to Tree. Leaf is part of Tree. you are likely to find Leaf in/at/on Lawn. Lawn is related to Course. 
Time <--RelatedTo--> Mine 
Tray --EtymologicallyRelatedTo--> Tree <--PartOf-- Leaf --AtLocation--> Lawn <--RelatedTo--> Course 