% sstipics.t23 -- generated from sstipics.mp
\fmfL(22.3724,3.61368,rt){$k_2 \nwarrow $}%
\fmfL(25.98894,14.2164,lt){$\swarrow k_1$}%
\fmfL(15.09851,12.10875,b){$-k_{12} \rightarrow $}%
