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Use of uninitialized value in split at filter.CGS.pl line 43, <INTERV
+AL> line 264.
Use of uninitialized value $position in numeric lt (<) at filter.CGS.p
+l line 46, <INTERVAL> line 264.
Use of uninitialized value $position in numeric lt (<) at filter.CGS.p
+l line 46, <INTERVAL> line 264.
Use of uninitialized value $position in numeric ge (>=) at filter.CGS.
+pl line 50, <INTERVAL> line 264.
Use of uninitialized value $position in numeric gt (>) at filter.CGS.p
+l line 54, <INTERVAL> line 264.
Use of uninitialized value in split at filter.CGS.pl line 43, <INTERVA
+L> line 264.