def postag_occurences(temp):
counts = {}
tokens = word_tokenize(temp)
length = len(tokens)
pos_tagged = nltk.pos_tag(tokens)
freq = FreqDist([y for (x,y) in pos_tagged])
elements = [i for i in freq.elements()]
for key in tagdict.keys():
counts[key] = 0
for element in elements:
counts[element] = freq[element] / length
return counts
