That text obviously wasn't written by a professor of Russian. There are some other mistakes in it. For example, a missing dash:
Он - мужчина средних лет. Она - женщина средних лет.
он - брюнет, блондин, шатен
она - брюнетка, блондинка, шатенка
  That text obviously wasn't written by a professor of Russian. There are some other mistakes in it. For example, a missing dash:
Он - мужчина средних лет. Она - женщина средних лет.
он - брюнет, блондин, шатен
она - брюнетка, блондинка, шатенка
Please correct my mistakes if you can, especially article usage.
My avatar shall be the author I'm currently reading.
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