As stated, the naming of the new entity type and the new relationship types is important. Inappropriately naming the entity type or omitting or inappropriately naming the relationship types will lead to misunderstanding and consequent incorrect processing of data (possibly caused by programmers misunderstanding the `meaning' of the database schema) and incorrect data appearing on the database. As a general guide entity types should have noun names (e.g. RECOMMENDATION) and relationships should have the form of a verb (e.g. `made' or `concerned' or `was_for').