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Продолжаем грейдить наш проект с гениологическим древом. Изменить древо, сделать класс параметизированным, чтобы условно дерево можно было использовать не только для людей, но и сделать родословную для собак (класс собак создавать не надо или создать, но за пределами пакета проекта). Продумать (только подумать, но можно и попробовать реализовать) класс общения с пользователем, набор команд, для операций над деревом