<?xml version="1.0" encoding="UTF-8" standalone="no"?><!--Created with JFLAP 6.4.--><structure> <type>pda</type> <automaton> <!--The list of states.--> <state id="0" name="q0"> <x>83.0</x> <y>132.0</y> <initial/> </state> <state id="1" name="q1"> <x>184.0</x> <y>129.0</y> </state> <state id="2" name="q2"> <x>304.0</x> <y>125.0</y> </state> <state id="3" name="q3"> <x>182.0</x> <y>225.0</y> </state> <state id="4" name="q4"> <x>300.0</x> <y>223.0</y> </state> <state id="5" name="q5"> <x>78.0</x> <y>237.0</y> <final/> </state> <!--The list of transitions.--> <transition> <from>1</from> <to>3</to> <read/> <pop/> <push/> </transition> <transition> <from>0</from> <to>1</to> <read/> <pop/> <push>$</push> </transition> <transition> <from>2</from> <to>1</to> <read>b</read> <pop/> <push/> </transition> <transition> <from>1</from> <to>2</to> <read>a</read> <pop/> <push>a</push> </transition> <transition> <from>4</from> <to>3</to> <read>a</read> <pop/> <push/> </transition> <transition> <from>3</from> <to>4</to> <read>b</read> <pop>a</pop> <push/> </transition> <transition> <from>3</from> <to>5</to> <read/> <pop>$</pop> <push/> </transition> </automaton> </structure>