{"income":2000,"age":12,"gender":"M","year":2020,"smokes":"no","cigarettes":10}
{"income":2010,"age":14,"gender":"f","year":2019,"smokes":"yes","cigarettes":4}
{"income":2010,"age":25,"gender":"v","year":19,"smokes":"no"}
{"income":1010,"age":65,"gender":"M","year":20,"smokes":"yes"}