Tree, might have been CCR first. But I see below that it was written Crosby, Stills, and KANTOR. I never knew of a connection between CCR and Airplane, but I am not at all a music expert. Interesting to see those 3 write a song together, for me anyway.
Words are just a big scam. They all just mean other words, so you keep on using even more and more words. That's how they get you.