51.   The potentially longer duration of registered designs is the main reason why a design which lies in this overlap should be registered.

52.   The technique is used for three main reasons.

53.   Rates in this market have taken on particular importance in the recent past for three main reasons.

54.   Hunger and poverty, the main reasons for their poaching, are not treated by the courts as extenuating circumstances.

55.   My main reason for pessimism is that insect vision works in a very different way from ours.

56.   There are three main reasons.

57.   But that would be a case of our having a competing or countervailing reason that conflicted with our main positive reason for not killing or stealing.

58.   But the main reason for quitting was that I felt stale, burnt-out.

59.   The main reason though is the loss of their feeding and breeding habitat.

60.   The beauty of these pieces often speaks for itself, and is the main reason for them being collectable.