new file mode 100755

@@ -0,0 +1,28 @@

+#!/usr/bin/python

+

+import fileinput

+

+a = fileinput.FileInput()

+

+def window_iterate(sequence, width=2, begin=0):

+	while begin < len(sequence):

+		result = sequence[begin:begin+width]

+

+		while len(result) < width: result.append('')

+

+		yield result

+		begin += 1

+

+for line in a:

+	line = line.split()

+

+	out = []

+	for window in window_iterate(line):

+		if window[0] in set(['a', 'an']):

+			if any(window[1].startswith(vowel) for vowel in 'aeiouh'):

+				window[0] = 'an'

+			else:

+				window[0] = 'a'

+		out.append(window[0])

+	print(' '.join(out))

+