<resources>
    <string name="app_name">Cute Pets Example</string>
    <string name="gender">What is your gender?</string>
    <string name="female">Female</string>
    <string name="male">Male</string>
    <string name="other">Other</string>
    <string name="age">What is your age group?</string>
    <string name="young">24 years or younger</string>
    <string name="middle">25-54 years old</string>
    <string name="old">55 years or older</string>
    <string name="pets">Which pets do you own?</string>
    <string name="cats">Cat(s)</string>
    <string name="dogs">Dog(s)</string>

    <string name="action_settings">Settings</string>

    <string name="tracking_id">UA-54478999-3</string>
    <string name="begin">Begin</string>
    <string name="title_activity_instructions">Instructions</string>

    <string name="gotit">Got it</string>

    <string name="instructions">You will be shown a series of image pairs comparing two pets.
    \n\n
    Tap on the pet you think is cuter.</string>
    <string name="title_activity_compare_pets">ComparePets</string>

    <string name="hello_world">Hello world!</string>
    <string name="title_activity_results">Results</string>

    <string name="resultsText">Thank you for your answers!\n\n
    Here is your top pet.</string>
</resources>

<resources>
    <string name="app_name">Cute Pets Example</string>
    <string name="gender">What is your gender?</string>
    <string name="female">Female</string>
    <string name="male">Male</string>
    <string name="other">Other</string>
    <string name="age">What is your age group?</string>
    <string name="young">24 years or younger</string>
    <string name="middle">25 to 54 years old</string>
    <string name="old">55 years or older</string>
    <string name="pets">Which pets do you own?</string>
    <string name="cats">Cat(s)</string>
    <string name="dogs">Dog(s)</string>
    <string name="begin">Begin</string>
    <string name="title_activity_instructions">Instructions</string>
    <string name="gotit">Got it</string>
    <string name="instructions">
        You will be shown a series of image pairs comparing two pets.\n
        \n
        Tap on the pet you think is cuter.</string>
    <string name="title_activity_compare_pets">ComparePets</string>
    <string name="title_activity_results">Results</string>
    <string name="resultsText">
        Thank you for your answers!\n
        \n
        Here is your top pet.</string>
</resources>

Remove unused string resources; readability.
Remove unused string resources; readability.
