Problem: If "There is a gap in the wall. You can see the garden through it.", is "You can see the garden through the wall." correct?

Answer: no

Problem: If "Fred and Alice had very warm down coats, but they were not enough for the cold in Alaska.", is "Fred and Alice were not enough for the cold in Alaska." correct?

Answer: no

Problem: If "So Mark slept. It was daylight when he woke with Warren's hand upon his shoulder.", is "It was daylight when he woke with Warren's hand upon Warren's shoulder." correct?

Answer:
no