sentences:  The archaeologists said the bones are from a boy who was roughly between the ages of ten and thirteen years at the time of his death and of a young woman who was roughly between the ages of eighteen and twenty-three years old.Anastasia was seventeen years, one month old at the time of the assassination, while her sister Maria was nineteen years, one month old and her brother Alexei was two weeks shy of his fourteenth birthday.Anastasia's elder sisters Olga and Tatiana were twenty-two and twenty-one years old at the time of the assassination.