User-agent: Mediapartners-Google
Disallow:
User-agent: *
Disallow:/search
Disallow:/searchresults
Disallow:/news-break-subscribe
User-agent: discobot 
Disallow: / 
User-agent: Boomtrain-Content-Bot*
Disallow:
Allow: /*
User-agent: Twitterbot
Disallow: