Besides going to Valencia for paella, the compleat traveler in Spain should experience duende .  This is not easy to arrange, however, for duende , unlike paella, cannot be made to order.
( ( Besides ( going ( to ( Valencia ( for paella ) ) ) ) ) ( , ( ( ( the ( compleat traveler ) ) ( in Spain ) ) ( ( should ( experience ( ( duende . ) ( This ( ( is not ) ( easy ( to ( ( ( ( arrange , ) however ) , ) ( for ( duende ( , ( ( unlike paella ) ( , ( ( can not ) ( be ( made ( to order ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Besides) (S (VP (VBG going) (PP (TO to) (NP (NP (NNP Valencia)) (PP (IN for) (NP (NN paella)))))))) (, ,) (NP (NP (DT the) (JJ compleat) (NN traveler)) (PP (IN in) (NP (NNP Spain)))) (VP (MD should) (VP (VB experience) (NP (NP (NNP duende) (. .)) (SBAR (S (NP (DT This)) (VP (VBZ is) (RB not) (ADJP (JJ easy) (S (VP (TO to) (VP (VB arrange) (, ,) (ADVP (RB however)) (, ,) (SBAR (IN for) (S (NP (NN duende)) (, ,) (PP (IN unlike) (NP (NN paella))) (, ,) (VP (MD can) (RB not) (VP (VB be) (VP (VBN made) (PP (TO to) (NP (NN order)))))))))))))))))) (. .)))
Visitors in Valencia should avoid duende altogether and stick to paella.
( ( Visitors ( in Valencia ) ) ( ( should ( ( ( ( avoid duende ) altogether ) and ) ( stick ( to paella ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Visitors)) (PP (IN in) (NP (NNP Valencia)))) (VP (MD should) (VP (VP (VB avoid) (NP (NN duende)) (ADVP (RB altogether))) (CC and) (VP (VB stick) (PP (TO to) (NP (NN paella)))))) (. .)))