Given an entity as input, output another entity which is part of the input entity. These are entities of meronym. In linguistics, meronymy is a semantic relation between a meronym denoting a part and a holonym denoting a whole. In simpler terms, a meronym (i.e., output entity) is in a part-of relationship with its holonym (i.e., input entity).

Example Input: development
Example Output: dorsal pancreatic bud

Example Input: supplement
Example Output: glucosamine and chondroitin sulfate

Example Input: mistletoe plant
Example Output:
tiny yellow-green flowers