My sister Aliah is both a comic and smart. Parallel Sentence?....

This is NOT parallel!

... a comic (= article + noun)

smart (= adj)

Make them both nouns, or make them both adjectives.

my sister aliah is both comic and smart

Yes, the sentence "My sister Aliah is both a comic and smart" is an example of a parallel sentence. In parallel structure, similar ideas are expressed in a balanced way. In this case, the parallel elements are "a comic" and "smart," as they are both adjectives describing Aliah. To create more parallelism, you can add the word "both" before each adjective. The revised sentence would then be: "My sister Aliah is both a comic and both smart."