Assertion: footprint | /r/HasProperty | exposed in coastline
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Source sentences:
text: No human fossils have been found but the scientists from national museums and universities, who have been working at Happisburgh for a decade, believe they must be there and that there is a good chance more footprints will be exposed in a coastline crumbling on every tide – there has been 30 metres of erosion at the site since the find.