IN: Available Discounts: ISIC CARD
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OUT: available discounts: isic card

IN: The program uses a database in which indexed file contents are stored.
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OUT: the program uses a database in which indexed file contents are stored.

IN: The variable a is a common factor.
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OUT: the variable a is a common factor.

IN: We regret, therefore, that once the product has been puchased by you, your order may not be cancelled or refunded.
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OUT:
we regret, therefore, that once the product has been puchased by you, your order may not be cancelled or refunded.