(S (S (BASENP (NN University) (NNS officials)) (VP (VBP have) (VP (VBN expressed) (NP (BASENP (DT an) (NN interest)) (PP (IN in) (S (VP (VBG developing) (NP (BASENP (DT a) (NN text) (NN messaging) (NN alert) (NN system)) (SBAR (WHADVP (WRB where)) (S (BASENP (NNS persons)) (VP (MD can) (VP (VP (VP (VB add) (BASENP (PRPD their) (NN phone) (NN number))) (PP (TO to) (NP (BASENP (DT a) (NN list)) (PP (IN for) (BASENP (NN notification)))))) (PP (IN in) (NP (BASENP (DT the) (NN event)) (SBAR (IN that) (S (BASENP (NNS incidents)) (VP (MD may) (VP (VB warrant) (NP (BASENP (DT the) (NN use)) (PP (IN of) (NP (BASENP (NN caution)) (CC or) (BASENP (JJ extra) (NN attention))))))))))))))))))))))) (PERIOD .))