family tree
????????
relation
?????????
relatives
???????
an engineer
????????????
a mechanic
??????????????
father
???
mother
???
parents
??????
grand father
????????
grand mother
????????
grand parents
????????????????
uncle
???, ???????
aunt
???, ??????
parents in law
oldest brother
???????
older brother
????
younger brother
???????
youngest brother
???????????
oldest sister
?????????
older sister
??????
younger sister
???????
youngest sister
???????????
son
??????
daughter
??????
children
???
nephew
???????
niece
???????
grand son
???????
grand daughter
???????