Usage note about InformationConcept.type - typo and question

[jimjyang]

Regarding the usage note about the property type in the class Information Concept:

1. Typo: "This can be primitive tupes ..." -> "This can be primitive types ..."
2. Questions: Why (and how to) use Code (skos:Concept) to express primitive types as data or string? Why not to use this property only for "business domain terminology such as age or number of employees", and use "expression of the expected value (cv:expressionOfExpectedValue)" to express "the type (e.g. the value is expected to be a xsd:decimal)"?