Although a mile long, its name is misleading because it is not one street but several different streets.
( ( Although ( ( a mile ) long ) ) ( , ( ( its name ) ( ( ( is misleading ) ( because ( it ( ( is not ) ( ( one street ) ( but ( several ( different streets ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Although) (S (NP (DT a) (NN mile)) (ADJP (JJ long)))) (, ,) (NP (PRP$ its) (NN name)) (VP (VBZ is) (ADJP (JJ misleading)) (SBAR (IN because) (S (NP (PRP it)) (VP (VBZ is) (RB not) (NP (NP (CD one) (NN street)) (PP (CC but) (NP (JJ several) (JJ different) (NNS streets)))))))) (. .)))
It is a mile long.
( It ( ( is ( ( a mile ) long ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (NP (DT a) (NN mile)) (JJ long))) (. .)))