% sstipics.t34 -- generated from sstipics.mp
\fmfL(25.98894,5.78358,lb){$\nwarrow p_2$}%
\fmfL(22.3724,16.3863,rb){$-p_{12} \swarrow $}%
\fmfL(15.09853,7.89122,t){$p_1 \rightarrow $}%
\fmfL(28.61981,-1.35004,lt){$b$}%
\fmfL(28.61981,21.35004,lb){$c$}%
\fmfL(6.89131,9.99998,r){$a$}%
