User-agent: shinchakubin
Disallow: /
User-agent: myweb
Disallow: /
User-agent: sharp-info-agent
Disallow: /
User-agent: crawl
Disallow: /
User-agent: bot*
Disallow: /
User-agent: hit
Disallow: /
User-agent: robot
Disallow: /
User-agent: empty user agent string
Disallow: /