rec-reln3

Test of <reln> with more than 2 children.

W3C sample	WIRIS
	$a< b< c< 10$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <reln>
    <lt/>
    <ci>a</ci>
    <ci>b</ci>
    <ci>c</ci>
    <cn>10</cn>
  </reln>
</math>

Author: Dave Doyle, Design Science