In addition, Dublin Tourism has devised and signposted three self-guided walking tours of the city, which you can follow using the booklets provided.
( ( In addition ) ( , ( ( Dublin Tourism ) ( ( has ( ( ( ( devised and ) signposted ) ( ( three ( self-guided ( walking tours ) ) ) ( of ( ( ( the city ) , ) ( which ( you ( can follow ) ) ) ) ) ) ) ( using ( ( the booklets ) provided ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN addition))) (, ,) (NP (NNP Dublin) (NNP Tourism)) (VP (VBZ has) (VP (VBN devised) (CC and) (VBN signposted) (NP (NP (CD three) (JJ self-guided) (NN walking) (NNS tours)) (PP (IN of) (NP (NP (DT the) (NN city)) (, ,) (SBAR (WHNP (WDT which)) (S (NP (PRP you)) (VP (MD can) (VP (VB follow)))))))) (S (VP (VBG using) (NP (NP (DT the) (NNS booklets)) (VP (VBN provided))))))) (. .)))
Dublin's self-guided tours are not easy to follow. 
( ( ( Dublin 's ) ( self-guided tours ) ) ( ( ( are not ) ( easy ( to follow ) ) ) . ) )
(ROOT (S (NP (NP (NNP Dublin) (POS 's)) (JJ self-guided) (NNS tours)) (VP (VBP are) (RB not) (ADJP (JJ easy) (S (VP (TO to) (VP (VB follow)))))) (. .)))