{"aspect_id":"AS38","aspect_name":"speed","aspect_reference":null,"aspect_symbol":"v","name":"speed knot (nautical mile per hour)","scale_id":"SC797","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"v kt","unit_id":"UN158","unit_name":"knot (nautical mile per hour)","unit_reference":null,"unit_symbol":"kt"}