Assertion: baker's cyst | /r/HasProperty | filled with synovial fluid
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Source sentences:
text: The cyst is filled with synovial fluid, a viscous material that lubricates the knee joint, reducing friction among the components of the joint and allowing the knee to flex and extend freely.
text: A Baker’s Cyst Removal procedure involves the surgical removal of the Baker’s Cyst; a benign cyst filled with synovial fluid (the fluid found between joints) that results in a bulge at the back of the knee