update

mr/python/mapper.py

@@ -7,7 +7,7 @@ for line in sys.stdin:
     # remove leading and trailing whitespace
     line = line.strip()
     # split the line into words
-    words = re.findall(r'\b\w+\b', line)  # using regex to find words
+    words = re.findall(r'\b[\w\s]+\b', line)  # using regex to find words
     # increase counters
     for word in words:
         # apply regex to remove non-alphanumeric characters and convert to lowercase