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+VENDOR: http://joelib.sf.net
+RELEASE_VERSION: $Revision: 1.4 $
+RELEASE_DATE: $Date: 2005/02/08 20:25:34 $
+
+########################################################################
+# Copyright OELIB: OpenEye Scientific Software, Santa Fe,
+# U.S.A., 1999,2000,2001
+# Copyright JOELIB/JOELib2: Dept. Computer Architecture, University of
+# Tuebingen, Germany, 2001,2002,2003,2004,2005
+# Copyright JOELIB/JOELib2: ALTANA PHARMA AG, Konstanz, Germany,
+# 2003,2004,2005
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+########################################################################
+
+#PATTERN MIN MAX
+#carbon patterns
+[#6Q2r+,#6Q3r+] 1 1
+[#6r]=@* 1 1
+[#6rQ3]=!@* 1 1
+# external double bonds to hetero atoms contribute no electrons to the
+# aromatic system. This makes sense, because chinoid systems are non-
+# aromatic, e.g. 1,4-Benzochinon
+[#6rQ3]=!@[!#6] 0 0
+[#6rQ3-] 2 2
+
+#nitrogen patterns
+[#7r](-@*)-@* 2 2
+[#7rQ2]=@* 1 1
+[#7Q3+] 1 1
+[#7rQ3]=O 1 1
+[#7Q2-] 2 2
+
+#oxygen patterns
+[#8r] 2 2
+[#8r+] 1 1
+
+#sulfur patterns
+[#16rQ2] 2 2
+[#16rQ2+] 1 1
+[#16rQ3]=!@O 2 2
+
+#other misc patterns
+[#15rQ3] 2 2
+#[#34rQ2] 2 2
+#[#52rQ2] 2 2
+