One unit of $\backslash ($ A $\backslash )$ is composed of $2$ units of $\backslash ($ B $\backslash )$ and three units of C$.$ Each $\backslash ($ B $\backslash )$ is composed of one unit of $\backslash ($ F $\backslash ).\backslash ($ C $\backslash )$ is made of one unit of $\backslash ($ D $\backslash ),$ one unit of $\backslash ($ E $\backslash ),$ and two units of $\backslash ($ F $\backslash ).$ Items $\backslash ($ A$,$ B$,$ C $\backslash )$ and D have $20,50,60$ and $25$ units of on$-$hand inventory. Items $\backslash ($ A$,$ B $\backslash )$ and $\backslash ($ C $\backslash )$ use lot$-$for$-$lot as their lot sizing technique, while $\backslash ($ D$,$ E $\backslash )$ and $\backslash ($ F $\backslash )$ require multiples of $50,100$ and $100$ respectively, to be purchased. B has scheduled receipts of $30$ units for period $1.$ No other scheduled receipts exist. Lead times are one period for Items $\backslash ($ A$,$ B $\backslash )$ and $\backslash ($ D $\backslash ),$ and two periods for Items $\backslash ($ C$,$ E $\backslash )$ and $\backslash ($ F $\backslash ).$ Gross Requirements for $\backslash ($ A $\backslash )$ are $20$ units in period $1,20$ units in period $2,60$ units in period $6,$ and $50$ units in period $8.$ Find the planned order releases for all items.