Assertion: urethra's surface | /r/HasProperty | covered by peritoneum
Facets:
Source sentences:
text: The superior surface and the upper part of the base are covered by peritoneum.
text: The upper and side surfaces of the bladder are covered by peritoneum (also called "serosa").
text: : The upper and side surfaces of the bladder are covered by peritoneum (also called "serosa").