Don't reference framework strings.

    <string name="emergency_tone_vibrate">Vibrate</string>

    <!-- Sound: Title for the Do not Disturb option and associated settings page. [CHAR LIMIT=30] -->

    <string name="zen_mode_settings_title" translatable="false">@*android:string/zen_mode_feature_name</string>

    <string name="zen_mode_settings_title" translatable="false">Do not disturb</string>

    <!-- Do not disturb: Title for the Priority interruptions option and associated settings page. [CHAR LIMIT=30] -->

    <string name="zen_mode_priority_settings_title">Priority only allows</string>