Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to make an origami pumpkin [title] Begin with a square sheet of paper. [step] You can also trim down a sheet of rectangular paper to make it square. [title] Lay your paper flat on a hard work surface with one corner pointing toward you.

Ending1: [step] Fold the edges over about 1/2 inch (1.3 cm). The rectangular sheet of paper will become the pumpkin. Ending2: [step] Draw a straight line from the bottom corner up to the centre of the paper. The point of this line should be at the top edge, creating a circle of paper with an x-axis. Ending3: [step] Lift the corner point towards you and fold it upwards and away to meet the corner facing away from you. This will form a triangle that is pointing away from you. Ending4: [step] Make sure that the paper is not touching any of your work surfaces. Take one of the corners and fold the paper up over your hand.

Answer format: ending1/ending2/ending3/ending4