<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
	<xs:element name="p" type="mixedType"/>
	<xs:complexType name="mixedType" mixed="true">
		<xs:choice maxOccurs="unbounded" minOccurs="0">
			<xs:element ref="b"/>
			<xs:element name="i" type="xs:string"/>
			<xs:element name="u" type="xs:string"/>
		</xs:choice>
		<xs:attribute ref="class"/>
	</xs:complexType>
	<xs:element name="b" type="xs:string"/>
	<xs:attribute name="class">
		<xs:simpleType>
			<xs:restriction base="xs:string">
				<xs:enumeration value="comment"/>
				<xs:enumeration value="warning"/>
			</xs:restriction>
		</xs:simpleType>
	</xs:attribute>
</xs:schema>