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- Stairs, in accommodating a
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- change in level, can reinforce
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- the path of movement, interrupt
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- it, accommodate a change in its
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- course, or terminate it prior to
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- entering a major space.
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- It can be treated as an additive
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- form or as a volumetric solid
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- from which space has been
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- carved out for movement as well
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- as rest.