A noun phrase is formed by a noun or pronoun, this one receives the name of the head, and any dependent words before or after the head. Dependent words are the ones that give specific details about the head. An example of a noun phrase can be: <em>a quantifier + a determiner + an adjective + a noun.</em> However, there are some others that are longer and with more dependent words.
Following this concept the two noun phrases in the text are:
<em>1. Senior citizens and others who need medical assistance </em>
<em>2. The subset of the US population with Medicare</em>
