51.   Stoplights and warning signals are more routinely ignored than obeyed.

52.   Teachers and parents also keep missing the warning signals.

53.   Technology, in the form of sophisticated warning signals, may have helped cause the crash.

54.   Sundays were still a blast for him, but he knew his loss of enthusiasm for the rest of the week was sending a warning signal.

55.   The city is already too small to attract the huge real estate investment trusts, but the Sprint vacancies are an extra warning signal.

56.   The first is fear for oneself, a warning signal in a dangerous situation.

57.   The four Osaka-area banks have already sent warning signals after writing off their bad loans.

58.   The hope was that such warning signals would be typical of earthquakes, Jordan said.

59.   The IMF has also moved this year to improve the data released by emerging market nations so investors will have better warning signals ahead of potential financial crises.

60.   The IMF has also moved this year to improve the data released by emerging market nations so that investors will have better warning signals ahead of potential financial crises.