An accommodation is a place that can accommodate human beings, e.g. a hotel room, a camping pitch, or a meeting room. Many accommodations are for overnight stays, but this is not a mandatory requirement.
Note: For more specific types of accommodations not defined in this ontology, you can easily use any Wikipedia entry from
http://en.wikipedia.org/wiki/List_of_human_habitation_forms
and replace the base URI
http://en.wikipedia.org/wiki/
by
http://www.productontology.org/id/
For instance, if you want want to describe an igloo (http://en.wikipedia.org/wiki/Igloo) for rent, you can use the local part 'Igloo' as a class identifier as follows:
http://www.productontology.org/id/Igloo