Add test case for the previously failing string
@@ -254,6 +254,8 @@ class TestNormalize(unittest.TestCase):
"2017-07-02 00:00:00", "set ambush")
testExtract("What is the day after tomorrow's weather?",
"2017-06-29 00:00:00", "what is weather")
+ testExtract("day after tomorrow",
+ "2017-06-29 00:00:00", "")
testExtract("Remind me at 10:45 pm",
"2017-06-27 22:45:00", "remind me")
testExtract("what is the weather on friday morning",
