( ( ( ( ( ( ( Additional information ) ( of ( interest ( Mount Everest ) ) ) ) ( is ( ( 29,028 feet ) tall ) ) ) , ) and ) ( K2 ( is ( ( the ( second ( tallest mountain ) ) ) ( in ( the world ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (JJ Additional) (NN information)) (PP (IN of) (NP (NN interest) (NNP Mount) (NNP Everest)))) (VP (VBZ is) (ADJP (NP (CD 29,028) (NNS feet)) (JJ tall)))) (, ,) (CC and) (S (NP (NNP K2)) (VP (VBZ is) (NP (NP (DT the) (JJ second) (JJS tallest) (NN mountain)) (PP (IN in) (NP (DT the) (NN world)))))) (. .)))
Additional information of interest Mount Everest is 29,028 feet tall, and K2 is the second tallest mountain in the world.
(ROOT (S (NP (NNP K2)) (VP (VBZ is) (NP (NP (DT the) (JJ second) (JJS highest) (NN mountain)) (PP (IN in) (NP (DT the) (NN world)))) (, ,) (PP (IN at) (NP (IN over) (CD 28,000) (NNS feet)))) (. .)))