The output is the logical OR of the outputs of all included AvailableData subsetters. This means that it will evaluate to true if at least one of the enclosed AvailableData subsetters evaluate to true. The subsetters after the first true outputted are not evaluated.
<availableDataOR> <noGaps /> <fullCoverage /> </availableDataOR>
In availableData there is a choice between all of the following