Complex sentence: In his early youth he lived in Gdańsk and then in Sopot, where he completed high school, and initially studied Engineering at the Gdańsk University of Technology, where, in 1977, he completed a master's degree in Electronics Engineering.
Split into simpler sentences: In his early youth he lived in Gdańsk and then in Sopot, where he completed high school. He studied Engineering at the Gdańsk University of Technology, where, in 1977, he completed a master's degree in Electronics Engineering.