The following is an example of Simple Alignment Format (SAF)
First column (10 characters) is a label.
Columns starting with the first non-space after the spaces
are the aligned sequences. "-" respresent gaps.
Blocks of alignement are separated by a blank line.

src_avist TTFVALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGYIPSNYV spcn_human ELVLALYDYQEKSPREVTMKKGDILTLLNSTNKDWWKVEV--NDRQGFVPAAYV src_rsvp TTFVALYDYESWTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGYIPSNYV src_avist TTFVALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGY spcn_human ELVLALYDYQEKSPREVTMKKGDILTLLNSTNKDWWKVEV--NDRQGF src_rsvp TTFVALYDYESWTETDLSFKKGERLQIVNNTEGDWWLAHSLTTGQTGI