Artificial intelligent assistant

What do the letters G and D mean in "The Trout" by Sean O'Faolain? In the story "The Trout", there are two letters that I want to know what they mean. > One of the first places Julia always ran to when they arrived in **G---** was The Dark Walk. It is a laurel walk, very old, almost gone wild, a lofty midnight tunnel of smooth, sinewy branches. > It was late June, the longest days of the year. The sun had sat still for a week, burning up the world. Although it was after ten o'clock it was still bright and still hot. She lay on her back under a single sheet, with her long legs spread, trying to keep cool. She could see the **D** of the moon through the fir-tree -- they slept on the ground floor.

The place referred to is Graiguenamanagh in County Kilkenny. The Dark walk was behind the walled kitchen gardens of Brandondale and led to a ‘Tea house’, a little stone structure close to the river Barrow. My uncle used to live in the house and I spent many years as a child playing in this magical place. We were all familiar with the story, as O’Faolain spent three summers there in the 1940s. Another story, A Tale of a Town, also describes Graig.

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