pair,contact1,contact2,flow1,flow2
4f9m_C_,1,5,1,1
4f9m_C_,2,6,1,1
4f9m_C_,3,7,1,1
4f9m_C_,4,8,1,1
4f9m_C_,5,9,1,1
4f9m_C_,6,9,1,1
4f9m_C_,6,10,1,1