Complex sentence: The only territorial adjustment after 1989 occurred in 1995, when Ilfov County was formed out of the so-called "agricultural sector" of the Municipality of Bucharest ("Sectorul Agricol Ilfov").
Split into simpler sentences: The only territorial adjustment after 1989 occurred in 1995, when Ilfov County was formed. Before that it was the "agricultural" sector of the Municipality of Bucharest ("Sectorul Agricol Ilfov").