Assertion: liver's role | /r/HasProperty | key
Facets:
Source sentences:
text: The liver plays a key role in digestion, as it produces and excretes bile (a yellowish liquid) required for emulsifying fats and help the absorption of vitamin K from the diet.
text: It plays a key role in breaking down or modifying toxic substances (e.g., methylation) and most medicinal products in a process called drug metabolism.
text: The liver plays a key role in carbohydrate metabolism by converting glucose to glycogen.