Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The women's 63 kilograms weightlifting event was the fourth women's event at the weightlifting competition, with competitors limited to a maximum of 63 kilograms of body mass. The whole competition took place on August 12, but was divided in two parts due to the number of competitors. Group B weightlifters competed at 12:30, and Group A, at 15:30. This event was the sixth Weightlifting event to conclude.
Each lifter performed in both the snatch and clean and jerk lifts, with the final score being the sum of the lifter's best result in each. The athlete received three attempts in each of the two lifts; the score for the lift was the heaviest weight successfully lifted.