Complex sentence: Erkki Bahovski complemented himself in the Groningen University in Netherlands in 1994, in the Reuters Foundation of the Oxford University in 2004 and in the International Visitors Leadership Programme in the U.S in 2006.
Split into simpler sentences: Erkki Bahovski complemented himself in the Groningen University in Netherland in 1994 and in the Reuters Foundation9 of the Oxford University in 2004. Also, in the International Visitors Leadership Programme in the U.S in 2006.