this time , the old mib label stands for milder is n't better . 
(ROOT (S (NP (DT this) (NN time)) (, ,) (NP (DT the) (JJ old) (NN mib) (NN label)) (VP (VBZ stands) (PP (IN for) (S (ADJP (JJR milder)) (VP (VBZ is) (RB n't) (ADJP (JJR better)))))) (. .)))
(ROOT (S (NP (DT ) (NN )) (, ) (NP (DT ) (JJ ) (NN ) (NN )) (VP (VBZ ) (PP (IN ) (S (ADJP (JJR )) (VP (VBZ ) (RB ) (ADJP (JJR )))))) (. )))