Given the diminutive nature of the words themselves, this is not that big a deal. But Laurelea has started appropriately using prepositions to describe her world, and it is really pretty cool to hear her getting it! "On" and "at" are the ones we've heard so far.
And, Laurelea has been present participling around for a few weeks now, most notably at Neen's on Christmas with dear cousin Caroline narrating, "I'm running, I'm running!" She has been experimenting with her -ing words, and has really begun to catch on, telling us she is eating, walking, and playing.
It really is fascinating to listen to her little brain begin to process these little niceties of language!