Assertion: oxygen | /r/HasProperty | produced as a waste product
Facets:
value: during the process of photosynthesis
type: TEMPORAL
Source sentences:
text: During the process of photosynthesis, oxygen is produced as a waste product.
text: Plants, algae and cyanobacteria use light energy to photosynthesize carbohydrate from carbon dioxide and water, with oxygen produced as a waste product.