a dependent clause can be the head of a sentence if it does not 'proceed as a main clause from the previous sentence.'
Is this statement accurate ?
Jenny buys her flowers from the store. This is the essence of consumerism.
This is the essence of consumerism (dependent head : complete main clause).
Proceeds as a main clause from the previous sentence.
html I think you might mean 'the beginning of a sentence'. At least that would avoid confusion with the technical definition of 'head of a sentence' in linguistics. panda blue 483 Is this statement accurate ?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
panda blue 483the head of a sentence
"The head of a sentence is usually taken to be the tensed verb, and every other word is either dependent on the sentence head, or connects to it through a path of dependencies."
https://www.nltk.org/book/