2 <!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
4 Einstein's theory of relativity includes one of the most
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5 widely recognized formulas in the world:
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6 <inlineequation><alt>e=mc^2</alt><graphic fileref="figures/emc2"/></inlineequation></para>