texmath-0.13.1.2: test/roundtrip/stackrel.native
[ ESub (EIdentifier "u") (EIdentifier "n") , EOver False (ESymbol Rel "\8594") (EIdentifier "w") , EIdentifier "u" ]
[ ESub (EIdentifier "u") (EIdentifier "n") , EOver False (ESymbol Rel "\8594") (EIdentifier "w") , EIdentifier "u" ]