Assertion: white blood cell | /r/HasProperty | cells of the immune system
Facets:
Source sentences:
text: White blood cells or leukocytes, are cells of the immune system involved in defending the body against both infectious disease and foreign materials.
text: White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.