<?xml version="1.0" encoding="UTF-8"?><structure><type>grammar</type><production><left>S</left><right>ABc</right></production><production><left>A</left><right>Aa</right></production><production><left>A</left><right>λ</right></production><production><left>B</left><right>BS</right></production><production><left>B</left><right>b</right></production></structure>