instruction: Open the Moon+Reader Books app and bookmark the current page.

previous_actions: 

active_application: Moon+ Reader

screen_description: windows {
  bounds_in_screen {
    right: 1080
    bottom: 136
  }
  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: 339
        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: 339
        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: "1:48 PM"
      text: "1:48"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        left: 223
        top: 1
        right: 339
        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: 339
        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 three 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: "System update notification: Android 13"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 281
        top: 1
        right: 339
        bottom: 136
      }
      class_name: "android.widget.ImageView"
      content_description: "Google notification: 30° 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: 3162
  title: "Moon+ Reader"
  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: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 1
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
      depth: 2
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 3
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
      depth: 4
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
      depth: 5
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        top: 1974
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      is_clickable: true
      is_focusable: true
      depth: 6
    }
    nodes {
      bounds_in_screen {
        top: 2364
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.FrameLayout"
      depth: 6
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        top: 1974
        right: 1080
        bottom: 1995
      }
      class_name: "android.view.View"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        top: 1995
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        top: 2364
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 7
    }
    nodes {
      bounds_in_screen {
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.ScrollView"
      is_focusable: true
      is_scrollable: true
      depth: 8
    }
    nodes {
      bounds_in_screen {
        top: 1995
        right: 1080
        bottom: 2090
      }
      class_name: "android.widget.LinearLayout"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        top: 2090
        right: 1080
        bottom: 2174
      }
      class_name: "android.widget.LinearLayout"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        left: 11
        top: 2179
        right: 544
        bottom: 2274
      }
      class_name: "android.widget.CheckBox"
      text: "Bluelight filter for eye care"
      is_checkable: true
      is_clickable: true
      is_focusable: true
      depth: 8
    }
    nodes {
      bounds_in_screen {
        top: 2274
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        top: 2364
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      depth: 8
    }
    nodes {
      bounds_in_screen {
        left: 68
        top: 237
        right: 1012
        bottom: 2400
      }
      class_name: "android.view.View"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        top: 2017
        right: 971
        bottom: 2068
      }
      class_name: "android.widget.TextView"
      text: "Brightness:"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 10
        top: 2090
        right: 174
        bottom: 2174
      }
      class_name: "android.widget.CheckBox"
      text: "Auto"
      is_checkable: true
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 185
        top: 2090
        right: 815
        bottom: 2174
      }
      class_name: "android.widget.SeekBar"
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 815
        top: 2090
        right: 898
        bottom: 2174
      }
      class_name: "android.widget.TextView"
      text: "-"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 898
        top: 2090
        right: 988
        bottom: 2174
      }
      class_name: "android.widget.TextView"
      text: "+"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 988
        top: 2090
        right: 1072
        bottom: 2174
      }
      class_name: "android.widget.ImageButton"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        top: 2274
        right: 150
        bottom: 2358
      }
      class_name: "android.widget.TextView"
      text: "Opacity"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 161
        top: 2274
        right: 815
        bottom: 2358
      }
      class_name: "android.widget.SeekBar"
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 815
        top: 2274
        right: 898
        bottom: 2358
      }
      class_name: "android.widget.TextView"
      text: "-"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 898
        top: 2274
        right: 988
        bottom: 2358
      }
      class_name: "android.widget.TextView"
      text: "+"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        top: 2364
        right: 194
        bottom: 2400
      }
      class_name: "android.widget.LinearLayout"
      is_clickable: true
      is_focusable: true
      is_long_clickable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 194
        top: 2364
        right: 966
        bottom: 2400
      }
      class_name: "android.widget.TextView"
      text: "SCENE I. A public place. (1/13)"
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 966
        top: 2364
        right: 1080
        bottom: 2400
      }
      class_name: "android.widget.TextView"
      text: "3.7%"
      is_clickable: true
      is_focusable: true
      depth: 9
    }
    nodes {
      bounds_in_screen {
        left: 53
        top: 2364
        right: 119
        bottom: 2400
      }
      class_name: "android.widget.TextView"
      text: "100"
      depth: 10
    }
    nodes {
      bounds_in_screen {
        left: 119
        top: 2364
        right: 194
        bottom: 2400
      }
      class_name: "android.widget.TextView"
      text: "13:48"
      depth: 10
    }
  }
}


assistant: !FUNCTIONCALL{"name": "navigate_back", "parameters": {}}