(S (S (PP (IN Until) (BASENP (NN 1939))) (S (BASENP (DT this)) (VP (VP (VBD worked) (ADVP (RB yearly))) (PP (IN from) (NP (NP (NP (NP (BASENP (DT the) (JJ first) (NNP Sunday)) (PP (IN of) (BASENP (NNP April)))) (PRN (LRB -LRB-) (PP (IN in) (BASENP (NN 1932) (COLON :) (NN 22) (NNP May))) (RRB -RRB-))) (BASENP (NN 00:00) (NN AM))) (CC and) (NP (NP (BASENP (DT the) (JJ first) (NNP Sunday)) (PP (IN of) (BASENP (NNP October)))) (NP (BASENP (NN 01:00) (NN AM)) (PRN (LRB -LRB-) (BASENP (JJ local) (NN time)) (RRB -RRB-))))))))) (PERIOD .))