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).

grow tissue
water
Tissue is a group of cells that work together to do specific jobs in the body, and water provides nutrients for tissue growth. Therefore,"water"is part of "grow tissue"..