同位关系的两部分之间多用逗号连接，有时也用破折号、分号、引号和括号连接。
例一：According to a report published on the British medical magazine, The Lancet, a study of ten German mobile phone users found that when they turned on their phones, their blood pressure goes up by 5 to 10 millimeters of mercury.
根据句法结构的知识，我们知道The Lancet是the British medical magazine的同位语，由此可知The Lancet是一个杂志的名称。
例二：Semantics, the study of the meaning of words, is necessary if you are to speak and read intelligently.
两个逗号中间的短语the study of the meaning of words是Semantics的同位语，意为"对词义进行研究的科学"， 即"语义学"。
