Assertion: autoimmune disease's system | /r/HasSubevent | confinement
Facets:
value: to bed
type: TRANSITIVE-OBJECT
value: sometimes
type: TEMPORAL
Source sentences:
text: Rheumatoid arthritis is a type of arthritis in which autoimmunity causes the immune system to attack tissues in the joints, leading to muscle pain, joint deformities, fatigue, weakness, appetite loss, weight loss, and sometimes confinement to bed.