Add punctuation: The control system further includes a billing module with customer database
A: The control system further includes a billing module with customer database.

Add punctuation: On the train trip to the camp a Gypsy woman told her and the others that they would all be gassed at Auschwitz
A: On the train trip to the camp, a Gypsy woman told her and the others that they would all be gassed at Auschwitz.

Add punctuation: Where do qualities such as warmth colour and taste fit into the atomic theory
A:
Where do qualities such as warmth, colour, and taste fit into the atomic theory?