Complex sentence: German tanks advanced towards the quayside but were knocked out by the 4.7 inch guns of "Venomous", one tank turning "over and over, like a child doing a cart-wheel".
Split into simpler sentences: German tanks advanced towards the quayside but were knocked out by the 4.7 inch guns of "Venomous". One tank was seen turning "over and over, like a child doing a cart-wheel".