Sentence:  The myth of the Southern plantation has had only a tangential relation with actuality , as Francis Pendleton Gaines showed forty years ago , and I suspect it has had a far narrower acceptance as something <WSD>real</WSD> than has generally been supposed . 
Meaning of the word marked with <WSD> tags:  being or occurring in fact or actuality; having verified existence; not illusory; not ghosts"