Complex sentence: On 6 March, just after the 3rd Armor Division had enter the city of Cologne, a famous tank duel took place a Panther tank on the street in the front of Cologne Cathedral was laying in wait for enemy tanks.
Split into simpler sentences: On 6 March, just after the 3rd Armor Division had enter the city of Cologne, a famous tank duel took place. A Panther tank on the street in the front of Cologne Cathedral was laying in wait for enemy tanks.