ut:"root",ttype:BINARY},AMfrac={input:"\\frac",tag:"mfrac",output:"/",ttype:BINARY},AMover={input:"\\stackrel",tag:"mover",output:"stackrel",ttype:BINARY},AMatop={input:"\\atop",tag:"mfrac",output:"",ttype:INFIX},AMchoose={input:"\\choose",tag:"mfrac",output:"",ttype:INFIX},AMsub={input:"_",tag:"msub",output:"_",ttype:INFIX},AMsup={input:"^",tag:"msup",output:"^",ttype:INFIX},AMtext={input:"\\mathrm",tag:"mtext",output:"text",ttype:TEXT},AMmbox={input:"\\mbox",tag:"mtext",output:"mbox",ttype:TEXT};var AMsym