python - How to remove duplicates in strings within list? -

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i have list of string in each string duplicate need remove. f.e.: 

lst = ('word1 2 36 2 2' ' word2 96 5 5 5 14' 'word3 45 6 45 45')

etc.

i need: 

lst = ('word1 2 36' 'word2 96 5 14' 'word3 45 6')

generally:

  1. create dictionary each key wordn
  2. in key, convert item 2 through n of list set
  3. iterate through dictionary, building new list each key , set's contents

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