Question: If "We had hoped to place copies of our newsletter on all the chairs in the auditorium, but there were simply not enough of them.", can we conclude that "There were simply not enough copies of the newsletter."?
Answer: yes

Question: If "My meeting started at 4:00 and I needed to catch the train at 4:30, so there wasn't much time. Luckily, it was delayed, so it worked out.", can we conclude that "The meeting was delayed, so it worked out."?
Answer: no

Question: If "We went to the lake, because a shark had been seen at the ocean beach, so it was a safer place to swim.", can we conclude that "The lake was a safer place to swim."?
Answer:
yes