( Boryslaw ( ( had ( ( ( many ( small streams ) ) , ) ( ( the tributaries ) ( of ( the ( Tys ( ` mienica ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Boryslaw)) (VP (VBD had) (NP (NP (JJ many) (JJ small) (NNS streams)) (, ,) (NP (NP (DT the) (NNS tributaries)) (PP (IN of) (NP (DT the) (JJ Tys) (`` `) (NN mienica)))))) (. .)))
Boryslaw had many small streams, the tributaries of the Tys'mienica.
(ROOT (S (NP (NNS Tributaries)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (JJ small) (NNS streams))))) (. .)))
Tributaries is the term for small streams.