VI. Hanna, a resident of Manila, filed a complaint for the partition of a large tract of land located in Oriental Mindoro. She impleaded her two brothers John and Adrian as defendants but did not implead Leica and Agatha, her two sisters who were permanent residents of Australia. Arguing that there could be no final determination of the case without impleading all indispensable parties, John and Adrian moved to dismiss the complaint. Does the trial court have a reason to deny the motion? Explain your answer. (4%)