added option to algorithm to allow identification of 'how' Qs parsed with /AF/ link which is bad grammar but changing the parse ranking to get rid of the AF's didn't work for me, so this hack fixes these questions until it can be worked out from the lg dictionary
added a second version of the howpredadj rule because relex currently gives varying outputs for this question type -- may be deletable later if we fix the usage of /AF/ LG link