<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE genetic_code [
<!ELEMENT genetic_code (gene+)>
<!ATTLIST genetic_code symmetry (2|4|8) #REQUIRED>
<!ATTLIST genetic_code mirror (yes|no) #REQUIRED>
<!ATTLIST genetic_code disperse (yes|no) #REQUIRED>
<!ELEMENT gene EMPTY>
<!ATTLIST gene x (-13|-12|-11|-10|-9|-8|-7|-6|-5|-4|-3|-2|2|3|4|5|6|7|8|9|10|11|12|13) #REQUIRED>
<!ATTLIST gene y (-13|-12|-11|-10|-9|-8|-7|-6|-5|-4|-3|-2|2|3|4|5|6|7|8|9|10|11|12|13) #REQUIRED>
<!ATTLIST gene color (red|green|blue|cyan|yellow|gray|white) #REQUIRED>
]>
<genetic_code symmetry="2" mirror="yes" disperse="yes">
	<gene x="12" y="11" color="cyan" />
	<gene x="-4" y="3" color="gray" />
	<gene x="-4" y="-12" color="red" />
</genetic_code>
