What is the share of each heir from the estate of a mother, two of whose sons died during her lifetime, and one son and one daughter died after her death, knowing that each of the deceased children has male and female offspring?

A son who dies before his mother does not inherit from her estate, but one who dies after her does inherit. If he dies before taking his share, his share transfers to his heirs. If a woman dies leaving only sons and daughters, all her wealth belongs to them, with the male receiving the share of two females. The sons and daughters of those who died after the mother inherit their share, but the sons and daughters of those who died before the mother do not inherit. Inheritance cases must be submitted to the Sharia courts for investigation due to the existence of rights, debts, and bequests that take precedence over the rights of the heirs.