Organic is related to Plant. Plant is part of Ecosystem. 
you are likely to find Soup in/at/on Jar. Soup is related to Sick. Sick is related to Disease. Infection is a type of Disease. 
Organic <--RelatedTo--> Plant --PartOf--> Ecosystem 
Jar <--AtLocation-- Soup <--RelatedTo--> Sick <--RelatedTo--> Disease <--IsA-- Infection 