Each unit of A is composed of one unit of B, two units of C, and one unit of D. C is composed of two units of D and three units of E. Items A, C, D, and E have on-hand inventories of 20, 10, 20, and 10 units respectively. Item B has a scheduled receipt of 10 units in period 1, and C has a scheduled receipt of 50 units in period 1. Lot-4-lot is used for items A and B. Item C requires a minimum lot size of 50 units. D and E are required to be purchased in multiples of 100, and 50, respectively. Lead times are one period for items A, B, and C, and two periods for items D, and E. The gross requirements for A are 30 in period 2, 30 in period 5, and 40 in period 8. Find the planned order releases for all items.