Paragraph- Sent 1: Susan wanted to have a birthday party.
Sent 2: She called all of her friends.
Sent 3: She has five friends.
Sent 4: Her mom said that Susan can invite them all to the party.
Sent 5: Her first friend could not go to the party because she was sick.
Sent 6: Her second friend was going out of town.
Sent 7: Her third friend was not so sure if her parents would let her.
Sent 8: The fourth friend said maybe.
Sent 9: The fifth friend could go to the party for sure.
Sent 10: Susan was a little sad.
Sent 11: On the day of the party, all five friends showed up.
Sent 12: Each friend had a present for Susan.
Sent 13: Susan was happy and sent each friend a thank you card the next week. 
Question: How many presents did Susan receive?
How many friends did susan have?