XIII. Caloy and Celia are legally married with legitimate children Arnold, Ben, Cherry, Delia and Ernie. Francia and Greg are Cherry's legitimate children. Ernie's legitimate children are Hector, Irene, and Jonathan. Ben died intestate leaving an estate of P20M with the following as surviving heirs: Arnold, Francia, Greg, Delia, Hector, Irene, Jonathan, Caloy and Celia. Among his surviving relatives, who shall inherit, how much will each heir inherit and under what principle shall these heirs inherit from Ben's estate? (10%)