<<< mml <?xml version="1.0" encoding="UTF-8"?> <math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> <munderover> <mrow> <munderover> <mi mathvariant="normal">BASE</mi> <mi mathvariant="normal">under-1</mi> <mphantom> <mi mathvariant="normal">fail</mi> </mphantom> </munderover> </mrow> <mi mathvariant="normal">under-2</mi> <mphantom> <mi mathvariant="normal">fail</mi> </mphantom> </munderover> <mo>=</mo> <munder> <mrow> <munder> <mi mathvariant="normal">BASE</mi> <mi mathvariant="normal">under-1</mi> </munder> </mrow> <mi mathvariant="normal">under-2</mi> </munder> </math> >>> native [ EUnderover False (EUnderover False (EIdentifier "BASE") (EIdentifier "under-1") (EPhantom (EIdentifier "fail"))) (EIdentifier "under-2") (EPhantom (EIdentifier "fail")) , ESymbol Rel "=" , EUnder False (EUnder False (EIdentifier "BASE") (EIdentifier "under-1")) (EIdentifier "under-2") ]