These don't look like syntax trees in undergrad linguistics syntax textbooks. Do linguists use these diagrams? What are they called?
Diagrams for grammatical analysis are visual aids to understanding sentence structure. The following diagrams reflect a conventional method of “mapping” parts of speech. Reviewing these diagrams should assist writers in identifying the true Subject, Verb, and Object in their sentences. Only with a clear understanding of Subjects, Verbs, and Objects and how they interrelate can a writer produce clear and direct sentences.
- Complex Sentence
i. The race will continue unless the rain ruins the track.
ii. Until the motion is heard, the court will not rule.
Bahrych, Merino. Legal Writing and Analysis in a Nutshell 5th edition (2017). 343.