Drupal 7 "I18n_string" module is "Internationalization" module. About install "Profile2" module.

When install "Profile2" module, it needs "I18n_string" module.

But I couldn't find it.
And I found in web page that "I18n_string" module is "Internationalization" module.

---------------------------------
And....
"Organic groups" module is "Og" module.