arithmetic_3

x + yz + z

W3C sample	WIRIS
[N/A]	$plus x times y z z$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="arith1">plus</csymbol>
    <ci>x</ci>
    <apply>
      <csymbol cd="arith1">times</csymbol>
      <ci>y</ci>
      <ci>z</ci>
    </apply>
    <ci>z</ci>
  </apply>
</math>

Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)