Template f 14 (type i , tok i ) generates a binary feature function if the background corpus contains the pattern dep i = deptype(arg1 , arg2 ) where the current token tok i is either arg1 or arg2 , and tok i is labeled with NER label type i .
f 8 (David Beckham, "David") may be lower than f 8 (David Bowie, "David"), for example, as this still active pop star is more frequently and prominently mentioned than the retired football player.