Random sentence generator

sentences.rb

def sentence(length = 5) 
wl = []
ws = []
File.open('/usr/share/dict/web2').each_line{ |s|
  s = s[0..-2]
  if s.length > 4
    wl.push(s)
  else
    ws.push(s)
  end
}

r = []
f = false
length.times do
  r << (f ? wl.sample : ws.sample)
  f = !f
end

r.join(" ")
end