S1: A common disease of the eye is conjunctivitis or ‘pink eye’, which often occurs in school-children.

S6: Students with this condition should be sent to the doctor.

P: This disease spreads rapidly among school-children.

Q: A white discharge also appears in the corners of the eyes.

R: One or both eyeballs turn quite red and have a feeling of irritation.

S: This discharge forms a crust which can often be seen in the morning after the eyes have been shut all night.

The proper sequence should be

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