Solar is related to Earth. Earth is related to Science. Science is related to Logical. 
Behavior is a type of Activity. Activity is related to Sale. Sale is related to Value. Value is related to Importance. 
Solar <--RelatedTo--> Earth <--RelatedTo--> Science <--RelatedTo--> Logical 
Behavior --IsA--> Activity <--RelatedTo--> Sale <--RelatedTo--> Value <--RelatedTo--> Importance 