I sent an email to a potential supervisor for PhD in Computer Science with a concise introduction, research I am exploring and a brief about how one of his publication is relevant to my research. Put in some good question around it as well. Then I asked if he is willing to take PhD candidates in his lab.
I received a response within half an hour of sending the mail. Though the content is a bit ambiguous. It says, "Thanks. There is just one position available in a particular stream. So please go ahead and apply."
How do I interpret it? Does this mean he is ready to supervise? He didn't put in any response to my question though. How do I reply to him further as I'll have to mention in the application if the supervisor is ready to take me in.