This is a pencil., That is a pencil., This is an eraser., That is an eraser., This is a chair., That is a chair., This is a table., That is a table., This is a book., That is a book., That is an eraser., This is an eraser., That is a pencil., This is a pencil., That is an eraser., This is an eraser., This is a chair., That is a chair., This is a pen., That is a pen.

This/ that

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