system
sentimental: I found a baby picture of my son and it made me miss him. He went off to college and I don't see him much anymore. 
gpt
My son went off to college. I found a baby picture of him and it made me sad.
gpt
I'm sorry. They grow up fast. Its hard to watch them leave the nest.
gpt
I guess I need to find a hobby to keep me busy!
gpt
That can help. I know I like my hobbies lol.