( ( ( a type ) ( of ( cartilage ( ( in which ) ( ( the matrix ) ( contains ( ( thick bundles ) ( of ( collagenous fibers ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (DT a) (NN type)) (PP (IN of) (NP (NP (NN cartilage)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (DT the) (NN matrix)) (VP (VBZ contains) (NP (NP (JJ thick) (NNS bundles)) (PP (IN of) (NP (JJ collagenous) (NNS fibers))))))))) (. .)))
a type of cartilage in which the matrix contains thick bundles of collagenous fibers.
(ROOT (S (NP (JJ Lamprey) (NN cartilage)) (VP (VBZ contains) (NP (DT no) (NN collagen))) (. .)))