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Internally, the Constraint Grammar Parser assigns a number as an identification tag to every constraint, in the order they are read from the constraint file. A further option useful for evaluation and debugging is to have the identification numbers (e.g. #23, #1243) of all constraints that applied to a particular word-form marked on that word-form. When numbering is used in conjunction with operator marking (=0, =s!, =HEUR!, etc.), numbers are stamped before the operators, i.e. to the right in terms of location. Output looks like this (the string ”map” indicates application of a morphosyntactic mapping): (”=s0#1620=HEUR!=s0#1415=s0#1389=s0#1367=s0#1444=s0#1482=s0#1503=s0#1517map#1 31<*resolution” (”resolution” <*> N NOM SG (@SUBJ @NN>))) (”=s0#1431=s0#1431=HEUR?=s0#1389=s0#1367=s0#1362=s0#1444=s0#1482=s0#1494=s0#1 504<*funding” (”fund” <*> := <SVO> PCP1 (@NN> @<NOM -FMAINV(N) @ -FMAINV(N) @AN>))) (”=s0#1388=s0#1444=s0#1482=s0#1454=s0#1506=s0#1494map#76<*corp.” (”corp” <*> ABBR NOM SG (@SUBJ @OBJ @<NOM))) (”=0#558<said” (”say” <VCOG> <SVO> <SV> V PAST VFIN (@+FMAINV))) (”the” (”the” <DEF> DET CENTRAL ART SG/PL (@DN>))) (”=s0#1517map#141=0#1224=0#1224=0#1224=0#1224<auction” (”auction” N NOM SG (@OBJ))) (”of” (”of” PREP (@<NOM-OF @ADVL))) (”its” (”it” <NONMOD> PRON GEN SG3 (@GN>))) (”map#156<securities” (”security” <BINDEF> N NOM PL (@<P))) The word-form securities was mapped by mapping statement #156, and the word-form said had one reading discarded by disambiguation constraint #558 (type =0). The word-form auction had four readings (verbal ones) discarded by disambiguation constraint #1224 (type =0), the sole remaining nominal reading was mapped by mapping statement #141, and one syntactic label was discarded by syntactic constraint #1517 (type =s0). The first three word-forms have a fairly complex derivational history. Note, in particular, that heuristic syntactic constraint #1620 applied to the word resolution (cf. ”=HEUR!”), and after that the ordinary syntactic constraint #1431 applied twice to the word *funding (cf. ”=HEUR?”). Section 19 provides further details. Morphological heuristics, text-based heuristics, and quantitative heuristics are marked by adding, respectively, the angle-bracketed features <MORPH-HEUR!>, <TEXT-