Position
'one' => 1,
'two' => 2,
'three' => 4,
'four' => 8,
'five' => 16,
'six' => 32,
'seven' => 64,
'eight' => 128,
'nine' => 256,
'ten' => 512,
'eleven' => 1024,
'twelve' => 2048,
'thirteen' => 4096,
'fourteen' => 8192,
'fifteen' => 16384,