The demand for subassembly S is $130$ units in week $7.$ Each unit of S requires $1$ unit of T and $2$ units of U$.$ Each unit of T requires $2$ units of V $,2$ units of W$,$ and $2$ units of X$.$ Finally, each unit of U requires $1$ unit of Y and $3$ units of Z$.$ One firm manufactures all items. It takes $2$ weeks to make S$,2$ weeks to make T$,2$ weeks to make U$,1$ week to make V$,2$ weeks to make W$,2$ weeks to make X$,2$ weeks to make Y$,$ and $2$ weeks to make Z$.$

Click the icon to view the product structure and the time$-$phased product structure.

Construct a gross material requirements plan $($type $0$ if the input box is not used$).$