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Memorandum
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In Shinhama Park, a pair of a child and his father, a group of high school
girls, and a group of boys were playing: a group of boys were playing with
their ball at the back of the ground where they were permitted to use the ball.
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During this recording, some crows were cawing, but no other birds were
twittering.
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The monitoring post at this park showed 0.073 μSv/h. (right picture).
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