Slope is related to Terrain. Terrain is related to Landscape. Landscape is related to Photo. Photography is derived from Photo. 
Tiny is related to Salt. Salt is related to Clear. Communicate requires Clear. you would Communicate because Cooperate. 
Slope <--RelatedTo--> Terrain <--RelatedTo--> Landscape <--RelatedTo--> Photo <--DerivedFrom-- Photography 
Tiny <--RelatedTo--> Salt <--RelatedTo--> Clear <--HasPrerequisite-- Communicate --MotivatedByGoal--> Cooperate 