#col_1    col_2  col_3                col_4        col_5
GTCT          GC TTCAGTGACTTCGAGGCGCG GC           GTCC

##</code><code>##

     ______
    /      \
   |        |   <--- The SPACER
   \       / 
    \     /
     C---G  <--- The STEM  
     G---C  
____/     \_____  <--- The FLANK


##</code><code>##

12 ..      35   TCT          GC TTCAGTGACTTCGAGGCGCG GC           AGCT
11 ..      36   GTC         TGC TTCAGTGACTTCGAGGCGCG GCA          GCTG
10 ..      37   GGT        CTGC TTCAGTGACTTCGAGGCGCG GCAG         CTGC
 9 ..      38   TGG       TCTGC TTCAGTGACTTCGAGGCGCG GCAGC        TGCT

##</code><code>##

 9 ..      38   TGG       TCTGC TTCAGTGACTTCGAGGCGCG GCAGC        TGCT

##</code><code>##

12 ..      35   TCT          GC TTCAGTGACTTCGAGGCGCG GC           AGCT