It is set in the present and chapters themselves are flashbacks

Can you repeat this sentence, but add in punctuation?
It is set in the present, and chapters themselves are flashbacks.
Two common types of structural constraints are

Can you repeat this sentence, but add in punctuation?
Two common types of structural constraints are:
Number of Rooms 50 Accommodation Type Hotel Bed Breakfast Bed Kitchen Apartment

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Number of Rooms: 50. Accommodation Type: Hotel, Bed & Breakfast, Bed & Kitchen, Apartment