qwxrab
hierarchical chain (BT): q qw qwx qwxr qwxra
q
qw
qwx
qwxr
qwxra
subclasses
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ILC 2 class details — ISKO Italia <http://www.iskoi.org/ilc/1/details.php> : 2011.07.15 - 2011.07.18 -