A favorite story about anything?
( ( ( A ( favorite story ) ) ( about anything ) ) ? )
(ROOT (NP (NP (DT A) (JJ favorite) (NN story)) (PP (IN about) (NP (NN anything))) (. ?)))
Anything that is a favorite story.
( ( Anything that ) ( ( is ( a ( favorite story ) ) ) . ) )
(ROOT (S (NP (NP (NN Anything)) (NP (DT that))) (VP (VBZ is) (NP (DT a) (JJ favorite) (NN story))) (. .)))