| 31. | Despite this, heavy machinery did much of the excavation work.
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| 32. | The first round of excavation work ended in the 1950s.
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| 33. | The Faux family undertook important excavation works and planted vines.
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| 34. | Excavation work by INAH began in 1981, but much of the site is still unexcavated.
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| 35. | The death toll, growing steadily with continuing excavation work, had risen to 135 by nightfall.
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| 36. | The Sumitomo loan should allow excavation work to begin in a few weeks, Levin wrote.
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| 37. | Excavation work however, had previously begun several months beforehand.
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| 38. | Excavation work is expected to be completed by 2018.
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| 39. | Excavation work for the foundation is already under way.
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| 40. | Excavation work on the tunnel began 12 years ago.
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