We do not assume any structured parametrizations in is itself a parameter to be tuned.
an annotation symbol, say, F , generally does not express any commonalities among the complete non-terminals annotated by F , such as where is the label of the root node of 8 @ 9A C B and @ ¬ h ® denotes the multiset of annotated CFG rules used in the generation of 8 @ 9A C B .