Towing<br>Last week we saw a police car in front of a parked car. The car was parked in front of a fire hydrant. A tow truck tried to get the car but it was blocked in. The company called in a flatbed tow truck. Before they could tow the car the driver came and drove away.
The police car parked in front of the car parked in front of the hydrant. 
( z1 car :mod ( z2 police ) :ARG1-of ( z3 park :ARG2 ( z4 in-front-of :op ( z5 car :ARG1-of ( z6 park :ARG2 ( z7 in-front-of :op ( z8 hydrant ) ) ) ) ) ) )