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Osiek, Gmina Joniec
Osiek
is a
village
in the
administrative district
of
Gmina Joniec
, within
Płońsk County
,
Masovian Voivodeship
, in east-central
Poland
. It
lies
approximately
west
of
Joniec
,
east
of
Płońsk
, and
north-west
of
Warsaw
.