Complex sentence: Nordic aliens are said by contactees and UFOlogists to be a group of humanoid extraterrestrials who resemble European racial images, or more specifically Nordic-Scandinavians, characteristically six to seven feet tall with long blond hair and blue eyes, and commonly reported as being male.
Split into simpler sentences: Nordic aliens are said by contactees and UFOlogists to be a group of humanoid extraterrestrials who resemble European racial images, or more specifically Nordic-Scandinavians. They are described as six to seven feet tall with long blond hair and blue eyes, and are commonly reported as being male.