Assertion: scoliosis's curve | /r/HasProperty | shaped like the letter s
Facets:
Source sentences:
text: The curvature of the back may develop as a single curve (shaped like the letter C) or as two curves (shaped like the letter S).
text: If the spine curves, it can show up as a curve to either side; as a single curve shaped like the letter C or “c-shaped scoliosis” or as a double curve shaped like the letter S or “s-shaped scoliosis”… rarely the curve can be a triple.