$F= \bar w\bar x\bar y+w\bar x\bar y+\bar wxy\bar z+\bar xy\bar z$
$\implies F= \bar w\bar x\bar y(z+\bar z)+w\bar x\bar y(z+\bar z)+\bar wxy\bar z+(w+\bar w)\bar xy\bar z$
$\implies F=\bar w\bar x\bar yz+\bar w\bar x\bar y\bar z+w\bar x\bar yz+w\bar x\bar y\bar z+\bar wxy\bar z+w\bar xy\bar z+w\bar xy\bar z $
$\implies F=\sum (0,1,2,6,8,9,10)$
solve using k-map we get
$F=\bar x\bar y+w\bar xz+\bar w y\bar z $