the text contains the token $x (not ignoring case)
  ($x is a quoted string)

  containsJavaToken(the_text, $x)
  
the text contains the token $x (ignoring case)

  containsJavaTokenIC(the_text, $x)

assume the variables are "X", "Y" and "Z"

  assumeMapping(variables := litset("X", "Y", "Z"));

$x is bigger than $y
  (when $x and $y are literal integers of any length)

  cmp(bigint($x), bigint($y)) > 0