Where do i place the punctuation marks in the sentence fencing demands of kenai quick reflexes and agility

Capital letters, comma and full stop.

Explanation:

In this sentence you need to include Capital F for fencing because it is the first word in the sentence and in the letter K of Kenai because it is a proper noun.A comma must be placed after Kenai to indicate that the following items are a list. Finally, a full stop at the end of the sentence is necessary.

Fencing demands of Kenai, quick reflexes and agility.

they fear for their lives