Care is a type of Word. Care is related to Human. you are likely to find Human in/at/on Pain. 
Educational is related to Library. Library is related to Warehouse. Warehouse is related to Manufacturing. Manufacturing is related to Assemble. 
Word <--IsA-- Care <--RelatedTo--> Human --AtLocation--> Pain 
Educational <--RelatedTo--> Library <--RelatedTo--> Warehouse <--RelatedTo--> Manufacturing <--RelatedTo--> Assemble 