english: Asfortheinitialsettingofnetworks,weassumethateverysourcehasaconnectivitytothesink,thatis,thereareatleastonepathtothesinkfromeverysources.
non_english: an ìre fàis Faodar obrachadh a-mach, stèidhichte air an ìre fàis, cùl-òrdugh nach eil e ceadaichte.