remember_link("true",[15,16])
remember_link("true",[16,3])
remember_link("true",[6,5])
remember_link("true",[3,4])
remember_link("true",[9,8])
remember_link("true",[10,9])
remember_link("true",[10,12])
remember_link("true",[12,11])
remember_link("true",[12,13])
remember_link("true",[13,14])
remember_link("false",[14,15])
remember_link("false",[5,4])
remember_link("false",[10,11])
remember_link("true",[7,3])
remember_link("true",[7,1])
remember_link("true",[1,10])
remember_link("false",[6,7])
remember_link("false",[1,8])
remember_link("false",[1,11])
remember_link("false",[1,14])
remember_link("false",[18,7])
remember_link("false",[11,17])
remember_link("false",[17,9])
