New answers tagged punctuation
Normally, I think there would need to be some sort of connecting form （て、し、り、など）before the comma on your example #2, as noted by Darius Jahandarie. If you do need to combine sentences like in your example #2, you would probably want to find a way to clarify to the reader (or audience) what you are really wanting to say, as well. For example, you might want ...
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