• grahamoxxx
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    Thanks.
    May 14, 2017, 10:10 am
  • iggie23
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    Thanks.
    May 15, 2017, 6:26 am
  • cross
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    Alright.
    May 15, 2017, 12:42 pm
  • margpheb
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    Do you mean hydrogen!
    May 16, 2017, 1:31 pm
  • ceribri
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    Good, but it's hydrogen.
    May 25, 2017, 11:15 pm
  • Strange_Victini
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    Great puzzle!
    July 4, 2017, 9:12 pm