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Getting error whild parsing XML

My Input XML has below HTML Code "•".While parsing I am getting below error.
Exception in component tFileInputXML_1
org.dom4j.DocumentException: Error on line 38 of document : The entity "bull" was referenced, but not declared. Nested exception: The entity "bull" was referenced, but not declared.
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.dom4j.io.SAXReader.read(SAXReader.java:365)
Nested exception:
org.xml.sax.SAXParseException: The entity "bull" was referenced, but not declared.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)

Kindly provide suggestion to fix the issue.

Thanks,
Prashanta