The binding legal principle is that in statutory interpretation, the words 'and' and 'or' must be given their ordinary, literal meaning unless there are compelling reasons to deviate from this approach. When interpreting the definition of 'business of a medical scheme' in section 1 of the Medical Schemes Act 131 of 1998, the subsections (a) and (b) must be read conjunctively (and subsection (c) where applicable), meaning an entity must undertake liability in return for premium or contribution for all these elements to be conducting the business of a medical scheme. Similarly, in the definition of 'accident and health policy' in the Short Term Insurance Act 53 of 1998, the exclusions in subsection (d) must be read conjunctively - all three subparagraphs must be present for a contract to fall within the exclusion. Insurance policies that pay benefits as a stated sum of money to the insured (rather than to service providers) and do not meet all the conjunctive requirements of the exclusions fall within the permissible scope of accident and health policies under the STI Act and do not constitute the business of a medical scheme. The principle from Chotabhai applies: every part of a statute should be construed to be consistent with every other part and with other unrepealed statutes enacted by the same Legislature.