What are the grey club icons that appear in Arbil's tree view? What does the number after those elements mean?

When a component can occur multiple times (= CardinalityMax higher than 1), Arbil automatically groups all occurrences of these components in the

Component Metadata Infrastructure

See: http://www.clarin.eu/cmdi

file. You can recognize these by the following properties:

• they have the grey club icon
• the text is shown in grey
• after the node a number indicates how many times the component occurs

E.g. in this example CMDI file there is a fragment that looks like:

<ISO639>
   <iso-639-3-code>cat</iso-639-3-code>
</ISO639>
<ISO639>
   <iso-639-3-code>spa</iso-639-3-code>
</ISO639>