(S (S (NP (BASENP (DT A) (NN surge)) (PP (IN in) (BASENP (NNS emails)))) (VP (VBZ has) (VP (ADVP (RB also)) (VP (VBN been) (VP (VBN felt) (PP (IN with) (NP (BASENP (NNS companies) (CC /) (NNS marketers)) (VP (VP (VBG making) (ADJP (JJ sure) (SBAR (S (BASENP (PRP they)) (VP (VBP have) (NP (NN consent) (S (VP (TO to) (VP (VB continue) (BASENP (DT the) (NNS e-mails))))))))))) (CC and) (VP (VP (VBG asking) (BASENP (DT those))) (S (VP (TO to) (VP (VB confirm) (SBAR (S (BASENP (PRP they)) (VP (VBP wish) (S (VP (TO to) (VP (VB continue) (BASENP (PRPD their) (NN subscription)))))))))))))))))))) (PERIOD .))