Is it possible to create Multisites within a Multisite Environment?

I wondered if this was possible. Basically the Network would be a number of Multisites, not a huge amount, let's say 5 or 6. Is it possible to create like multiple Minisites within or rather under those 5 or 6 Multisites? I was just curious before I go any further with my Network as it would be the perfect structure for my Network. The Minisites could be any number but they would only be small and keeping their plugins to a minimum. I guess you could describe them as information only sites rather than communities. Thanks for any feedback in advance.