original: over 6,000 navvies were hired for up to two years building , blasting and clearing rubble beneath the south downs to create clayton tunnel .
simplifications: over 6,000 navvies were hired for up to two years building , blasting , and clearing rubble beneath the south downs to create clayton tunnel . over 6,000 infantry were hired for up to two years building , blasting and clearing rubble beneath the south downs to create clayton tunnel . over 6,00 navvies were hired for up to two years to blast and clear rubble under the south downs to create the clayton tunnel . over 6 , 000 navvies were got use of person for money for up to two years building , making hole in and clearing rubble under the south downs to make come into existence clayton ways under -lrb- earth , river -rrb- . more than 6000 navigators were contracted for up to two years building , blasting and clearing remains beneath the south downs , to build clayton tunnel . over 6,000 navvies were hired for up to two year building , blasting , and clearing rubble under the south downs to make clayton tunnel . to create clayton tunnel , over 6,000 navigators were hired for two years , for building , blasting and clearing rubble beneath the south downs . more than 6,000 navvies were hired , for up to two years building , blasting and clearing rubble beneath the south downs , to make clayton tunnel .