Consider the bill of materials $($BOM$)$ shown to the right.

If inventory consists of $2$ units of $B,1$ unit of $F,$ and $4$ units of $G,$ how

many units of $G,E,$ and $D$ must be purchased to produce $6$ units of

product $A?$ unit$($s$)$ of item $G,$ units of item $E,$ and units of item

D$.($Enter your responses as integers.$)$