Wondering why this skill has to come so far down the tree...
My feeling is, for additional vocabulary and a factor of surprise.
what's wrong with the "little" goat??
Nothing - and it's accepted now.
Could I write:
Η μικρή κατσίκα είναι δίπλα σε η αγελαδα(?).
I have learned once that is(είναι) is followed by something called "predikatsord"(predikativ) which is in nominativ.