There are a number of variants, including two different stories.

A total of 1,847 Su-7 and its variants were built.

By early 2009 over 300 of all variants had been sold world wide.

It was produced in a number of variants during the war.

The combination of the variants model the individual test cases.

There are a number of variants on the same theme.

In addition, the M1931 had a number of experimental variants.

The island's name has been recorded in a number of variants.

In between are any number of variants on these themes.

A detailed analysis of the letter and its different variants.