The following sentences form a paragraph. The last sentence of the paragraph is given. The rest are numbered as P, Q, R, S, T and U. These parts are not given in their proper order. Arrange them in the correct order to make the paragraph meaningful and then answer the questions given below.

P. Further legislation in 1872 increased the number of inspectors and made sure they actually had some experience in mining before they began.

Q. In 1855, a new act introduced seven basic rules.

R. Legislation enacted in 1860 banned children under twelve from working underground and required regular inspections of the weighing systems.

S. These were about ventilation, air shafts, and the mandatory fencing off of unused mining pits.

T. The 1860 laws also proposed that Unions be allowed to grow.

U. It also established higher standards for signaling from the mine to the surface, adequate breaks for the steam-powered elevators, and safety rules for steam engines.

7. By the end of the 19th century, the industry had gone from being largely unregulated to having miners represented in Parliament through the surging Labour Party.