<?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>77.0</x> <y>97.0</y> <initial/> </state> <state id="1" name="q1"> <x>205.0</x> <y>98.0</y> </state> <state id="2" name="q2"> <x>379.0</x> <y>96.0</y> </state> <state id="3" name="q3"> <x>207.0</x> <y>241.0</y> </state> <state id="4" name="q4"> <x>375.0</x> <y>237.0</y> </state> <state id="5" name="q5"> <x>525.0</x> <y>242.0</y> <final/> </state> <!--The list of transitions.--> <transition> <from>2</from> <to>2</to> <read>a</read> <pop/> <push>a</push> </transition> <transition> <from>2</from> <to>2</to> <read>b</read> <pop/> <push>b</push> </transition> <transition> <from>3</from> <to>3</to> <read>a</read> <pop>a</pop> <push/> </transition> <transition> <from>3</from> <to>3</to> <read>b</read> <pop>b</pop> <push/> </transition> <transition> <from>4</from> <to>5</to> <read/> <pop>B</pop> <push/> </transition> <transition> <from>1</from> <to>2</to> <read>a</read> <pop/> <push>a</push> </transition> <transition> <from>0</from> <to>1</to> <read/> <pop/> <push>B</push> </transition> <transition> <from>3</from> <to>4</to> <read/> <pop/> <push/> </transition> <transition> <from>2</from> <to>3</to> <read>b</read> <pop/> <push>b</push> </transition> </automaton> </structure>