Include a include-tag within another include-tag

I'm new to asking questions on StackOverFlow so bare with me.

I'm making a simple formulary so me and my high school friends can easily look up certain formulas.

So the problem is that I have made my own "google-card" RelativeLayout, so I can use include-tag in my main XML, but I also want to include images in some formulas and just some text in some formulas. Which mean I can't use just one set of include-tag nor just one xml-file. I've searched all afternoon for an answer but no one mentioned anything about nesting include-tags.

main.xml

<include 
        android:id="@+id/include"            
        layout="@layout/test" >

        <include android:id="@+id/image"
            android:src="@layout/image" />

</include>

test.xml

<RelativeLayout
        android:background="@drawable/main_restaurant"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:layout_marginBottom="@dimen/cardTopBottom"
        android:layout_marginLeft="@dimen/cardLeftRight"
        android:layout_marginRight="@dimen/cardLeftRight"
        android:layout_marginTop="@dimen/cardTopBottom"
        android:clickable="true"
        android:onClick="" />              

image.xml

ImageView 
            android:id="@+id/image"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_centerVertical="true"
            android:layout_marginBottom="@dimen/cardTopBottom"
            android:layout_marginLeft="@dimen/cardLeftRight"
            android:layout_marginRight="@dimen/cardLeftRight"
            android:layout_marginTop="@dimen/cardTopBottom"
            android:contentDescription="test"
            android:scaleType="centerCrop" 
            android:src="@drawable/cirkeln"/>

This isn't fully finished, I will add more "parts" (more xml-files) as soon as I've managed to nest include-tags.

Would appritiate any kind of help why it's not working.