Catalog

I was walking down the street. A puzzle had been give to me, and I sensed the answer was near. I already knew two things, but couldn't put them together. I needed the third part. The missing link which would let everything fall into place. I decided to review what I knew...

This was the first piece of information I had. By itself it was meaningless. But it wasn't all that I had.
It was then that I saw a man half a block ahead. Quickly moving among the people, I might not have noticed him had it not been for his purple shirt. I thought of the second part, and I knew he had what I was searching for.