This is a new set of XML combinators for Xtract, not standard, >. The main difference is that the Content Filter type becomes a Double Filter. A Double Filter always takes the whole document as an extra argument, so you can start to traverse it again from any inner location within the document tree.

The new combinators definitions are derived from the old ones. New names are derived from the old by surrounding with the letter o, or by doubling the operator symbols.