It [must be nested by] \ ^\ ``constraint``\ ^\  [``num:d``] instance(s) of \ .\ ``other_entity``\ .\ 
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Usages:
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 - **Then** *It [must be nested by] ^exactly^ [2] instance(s) of .IfcDistributionPort.*

   :doc:`/features/SYS001_Cable-signal-flow`:15