Complex sentence: He was, according to polls, the favourite of the election, along with former Prime Minister Miloš Zeman, however, he lost in the first round to Zeman and the Foreign Minister Karel Schwarzenberg.
Split into simpler sentences: He was, according to polls, the favourite of the election, along with former Prime Minister Miloš Zeman. However, he lost in the first round to Zeman and the Foreign Minister Karel Schwarzenberg.