instruction: Go to the HelloTalk app & start the grammar chapter

previous_actions: {"name": "open_app", "parameters": {"app_name": "HelloTalk"}}
{"name": "scroll", "parameters": {"direction": "down"}}

active_application: HelloTalk

screen_description: windows {
  bounds_in_screen {
    right: 1080
    bottom: 136
  }
  id: 7
  layer: 1
  window_type: TYPE_SYSTEM
  tree {
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 2
    }
    nodes {
      bounds_in_screen {
        left: 145
        right: 1027
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      depth: 3
    }
    nodes {
      bounds_in_screen {
        left: 145
        top: 1
        right: 575
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 4
    }
    nodes {
      bounds_in_screen {
        left: 575
        top: 1
        right: 1006
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 4
    }
    nodes {
      bounds_in_screen {
        left: 145
        top: 1
        right: 397
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 5
    }
    nodes {
      bounds_in_screen {
        left: 924
        top: 1
        right: 1006
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      depth: 5
    }
    nodes {
      bounds_in_screen {
        left: 145
        top: 1
        right: 397
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        left: 924
        top: 1
        right: 1006
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        left: 145
        top: 1
        right: 223
        bottom: 136
      }
      class_name: "android.widget.TextView"
      content_description: "1:38 PM"
      text: "1:38"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        left: 223
        top: 1
        right: 397
        bottom: 136
      }
      class_name: "android.widget.FrameLayout"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        left: 924
        top: 1
        right: 986
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        left: 986
        top: 1
        right: 1006
        bottom: 136
      }
      class_name: "android.widget.LinearLayout"
      content_description: "Battery charging, 100 percent."
      depth: 7
    }
    nodes {
      bounds_in_screen {
        left: 223
        top: 1
        right: 397
        bottom: 136
      }
      class_name: "android.view.ViewGroup"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        left: 924
        top: 39
        right: 970
        bottom: 97
      }
      class_name: "android.widget.FrameLayout"
      content_description: "Wifi two bars."
      depth: 8
    }
    nodes {
      bounds_in_screen {
        left: 986
        top: 51
        right: 1006
        bottom: 85
      }
      class_name: "android.widget.ImageView"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        left: 223
        top: 1
        right: 281
        bottom: 136
      }
      class_name: "android.widget.ImageView"
      content_description: "Gmail notification: 2 new messages"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 281
        top: 1
        right: 339
        bottom: 136
      }
      class_name: "android.widget.ImageView"
      content_description: "YouTube notification: 尾田栄一郎初期短編『MONSTERS』アニメ制作決定解禁映像!!"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 339
        top: 1
        right: 397
        bottom: 136
      }
      class_name: "android.widget.ImageView"
      content_description: "Google notification: 29° in New Delhi"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 931
        top: 39
        right: 970
        bottom: 97
      }
      class_name: "android.widget.LinearLayout"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 931
        top: 48
        right: 970
        bottom: 87
      }
      class_name: "android.widget.FrameLayout"
      depth: 10
    }
    nodes {
      bounds_in_screen {
        left: 931
        top: 48
        right: 970
        bottom: 87
      }
      class_name: "android.widget.ImageView"
      depth: 11
    }
  }
}
windows {
  bounds_in_screen {
    right: 1080
    bottom: 2400
  }
  id: 1418
  title: "HelloTalk"
  window_type: TYPE_APPLICATION
  is_active: true
  is_focused: true
  tree {
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.widget.LinearLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        top: 2337
        right: 1080
        bottom: 2400
      }
      class_name: "android.view.View"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.widget.FrameLayout"
      depth: 2
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.widget.FrameLayout"
      is_focusable: true
      depth: 3
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      depth: 4
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      depth: 5
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      is_clickable: true
      is_focusable: true
      depth: 7
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2337
      }
      class_name: "android.view.View"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 152
        top: 567
        right: 929
        bottom: 1620
      }
      class_name: "android.widget.ImageView"
      is_clickable: true
      is_focusable: true
      depth: 10
    }
    nodes {
      bounds_in_screen {
        left: 498
        top: 1686
        right: 582
        bottom: 1770
      }
      class_name: "android.widget.ImageView"
      is_clickable: true
      is_focusable: true
      depth: 10
    }
  }
}


assistant: !FUNCTIONCALL{"name": "click", "parameters": {"x": 526, "y": 1723}}