parseab.rb

#!/usr/bin/env ruby

require 'json'

dat = {}
STDIN.read.split("\n")[4..-1].each do |line|
  split = line.split(':')
  if split.length > 1
    lhs = split[1].strip.split(/\s+/)
    if lhs.length > 1
      dat[split[0]] = lhs
    else
      dat[split[0]] = lhs[0]
    end
  end
end

puts JSON.pretty_generate dat