<math xmlns="http://www.w3.org/1998/Math/MathML"> <apply> <csymbol cd="s_dist1">moment</csymbol> <cn>3</cn> <semantics> <cn>0</cn> <annotation-xml cd="mathmltypes" name="type" encoding="MathML-Content"> <ci>integer</ci> </annotation-xml> </semantics> <ci>X</ci> </apply> </math>