% sstipics.t22 -- generated from sstipics.mp
\fmfL(25.98894,5.78358,lb){$k_1 \nwarrow $}%
\fmfL(22.3724,16.38632,rb){$-k_{12} \swarrow $}%
\fmfL(15.09853,7.89122,t){$k_2 \rightarrow $}%
