"They think that young people don't have the moral authority to vote and that they don't have the political competence to vote."
Head: People
Pre-modifiers: They think / that young
Post-modifiers: don't have the (moral = extra post-modifier) authority to vote / and that they don't have the (political = extra post-modifier) competence to vote.
Pre-modifiers: 2
Post modifiers: 4
Erik! Good attempt! However, be careful when identifying structures. In this case, you provided a full sentence, that is, an independent structure with subject and predicate. Within this sentence, though, there are different noun phrases:
They
young people
the moral authority to vote
the political competence to vote
Try analyzing those noun phrases.
They
young people
the moral authority to vote
the political competence to vote
Try analyzing those noun phrases.
young people
head: people
pre-modifiers: young
the moral authority to vote
head: authority
pre-modifiers: the, moral
post-modifiers: to vote
the political competence to vote
head: competence
pre-modifiers: the, political
post-modifiers: to vote
head: people
pre-modifiers: young
the moral authority to vote
head: authority
pre-modifiers: the, moral
post-modifiers: to vote
the political competence to vote
head: competence
pre-modifiers: the, political
post-modifiers: to vote