What is the share of the deceased son's daughter, and the children (sons and daughters) of the deceased son, when their mother passed away before them?

If a woman dies leaving three sons and one daughter, her entire inheritance goes to her sons and daughter, with the male receiving the share of two females, in accordance with the words of Allah Almighty: "Allah instructs you concerning your children: for the male, what is equal to the share of two females" [An-Nisa: 11]. There is nothing for the granddaughters or grandsons (children of her sons) because they are completely excluded by the deceased's direct children. Also, the two sons who died before their mother do not inherit from her, because one who dies earlier does not inherit from one who dies later. Inheritance matters must be referred to the Sharia courts for investigation.