(S (S (BASENP (DT The) (NNP Royal) (NNP Mail)) (VP (VBZ is) (VP (VP (VBG warning) (BASENP (NNS customers))) (SBAR (IN that) (S (NP (BASENP (NN mail) (NNS collections) (CC and) (NNS deliveries)) (PP (IN across) (BASENP (DT the) (NNP UK)))) (VP (MD will) (VP (VB be) (VP (VBN disrupted) (PP (IN because) (PP (IN of) (BASENP (DT the) (NNS incidents)))))))))))) (PERIOD .))