"He conducted many interviews with old-timers asking them to recall stories about these old trees he surveyed," he said.
Liao described his encounters with the elderly people who grew up with the old trees in Taipei as the "greatest delight" of his life over the past five years.
"I've made friends with the elderly people who gather under the city's old trees. Making these new friends at my age is great fun," said Liao.
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