Simplify the following text for a Grade 7 native English-speaking person.
Original: Some oaths of office are a statement of loyalty to a constitution or other legal text , to a person or other office holder .
Simplified: Some oaths of office are a statement of loyalty to a constitution or other legal text or to a person or other office-holder ( e.g. , an oath to support the constitution of the state , or of loyalty to the king ) .