I am new to bioinformatics and natural language processing. In linguistics, they have Treebank - derivation/parse tree for each sentence. For example, a sentence "Sara sleeps" can be visualized by a tree: Sentence -> Subject Verb, Subject -> Sara, Verb -> sleeps.
I've heard about Genbank, a database for nucleotide sequences. Does a DNA has its own derivation tree, or is any pattern in a DNA sequence already known with current technology? I only heard about repeats.