Assertion: cart's base | /r/HasProperty | prevented
Facets:
Source sentences:
text: Thus, it is configured that the swing range of the second moving motion unit 4 around the axis of the annular core bodies 6 of the first moving motion unit 3 as well as the swing range of the base 2 and the occupant riding section 5 around X-axis are restricted, and the base 2 and the occupant riding section 5 are prevented from tilting excessively to the rear side of the occupant.