Ruby script to determine part of speech of a word

part_of_speech.rb

#!/usr/bin/env ruby

require 'httpclient'
require 'nokogiri'


def part_of_speech(word)
	parts_of_speech = []
	client = HTTPClient.new
	body = client.get("http://dictionary.reference.com/browse/#{word}?s=t").body
	structure = Nokogiri::HTML(body)
	structure.xpath("//div[contains(@class,'def-list')]").search(".dbox-pg").each do |part|
		text = part.text
		if !parts_of_speech.include? text
			parts_of_speech << text
		end
	end
	return parts_of_speech
end



puts part_of_speech(ARGV[0])