Assertion: immune system's component | /r/HasProperty | bone marrow
Facets:
Source sentences:
text: The major components of a person's immune system include the Thymus, Lymph System, Spleen, White Blood Cells, Bone Marrow, Complement System, Antibodies, and Hormones.
text: The primary components of the immune system include the lymph nodes, tonsils, spleen, bone marrow, and thymus.