应用: 百度地图
任务: 打开百度地图，进入打车，输入起点‘西单’，终点‘北京南站’
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: CLICK
step_id: 6
action: CLICK
step_id: 7
action: CLICK
step_id: 8
action: TYPE
type_text: 北京南站
step_id: 9
action: CLICK
step_id: 10
action: CLICK
step_id: 11
action: CLICK