Assertion: bicycle's rider | /r/CapableOf | use either of these devices
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Source sentences:
text: When using either of these devices, the rider perched on a seat between two wheels similarly sized wheels, and using the feet, propelled the bicycle a bit like a the "balance bikes" kids ride today, Drais exhibited his bicycle in Paris in 1818, and while popularly received, its design limited its use to really just flat, well-groomed paths through gardens and parks, which were off-limits to a good portion of the population in those days.