Add punctuation: Heaps of shrimp jitter and a single shrimp has jerked its way to some live crabs
A: Heaps of shrimp jitter, and a single shrimp has jerked its way to some live crabs.

Add punctuation: The second World War on Mykines Holm
A: The second World War on Mykines Holm.

Add punctuation: Size of the room 168 m
A:
Size of the room: 168 m