Sentence:  England will regard it as a measure of justice for Frank Lampard's disallowed goal against Germany in Bloemfontein at the 2010 World Cup - but it was also an <WSD>illustration</WSD> of how they rode their luck for long periods in front of a predictably partisan home crowd. 
Meaning of the word marked with <WSD> tags:  That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.