an class="keyword">becomes</span> p <span class="keyword">before</span> p
k <span class="keyword">becomes</span> s <span class="keyword">before</span> s
k <span class="keyword">becomes</span> t <span class="keyword">before</span> t

<span class="comment">-- These rules make the romanization more familiar for English speakers.
</span>s <span class="keyword">becomes</span> sh <span class="keyword">before</span> i, ī, y
t <span class="keyword">becomes</span> ch <span class="keyword">before</span> i, ī, y
z <