公民, PR, 外国人: A，B，C
<1km, 1-2, >2,: x,y,z
按照优先级，Ax > Ay> Az > Bx > By > Bz > Cx > Cy >Cz 顺序，直到quota填满。
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（from MOE website)
Question:
Will my children who are registering at the same school be balloted together in the Primary One (P1) Registration Exercise?
Answer:
For the purpose of balloting in the Primary One (P1) Registration Exercise, siblings/twins/triplets of the same citizenship will be treated as one group, i.e. the group is treated like one application. This means all the children will be admitted to the school if one applicant is successfully selected in the computerised ballot.
