Assertion: calcium carbide's use | /r/HasProperty | preserved egg
Facets:
Source sentences:
text: Calcium Hydroxide uses in food for Chinese century egg, also called pidan in the Chinese language, is a preserved egg made by preserving egg in clay, ash, rice hulls, quicklime, and salt for several weeks or months, depending on the method used to process it and how long it is going to be preserved.