Can one word form a phrase?
For example:
Man is mortal.
There is no modifier. So, here is there any phrase?
Can one word form a phrase?
For example:
Man is mortal.
There is no modifier. So, here is there any phrase?
In Generative Syntax, specifically "X-bar theory", a phrase is (or was) defined as the "maximal projection" of a category feature. The idea is that a word which takes a complement or a modifier covers the whole unit with its category feature because they behave as a group. That's why "the old man in the grey coat" is called a noun phrase, just like "the man". Whatever the size of this nominal group, it can function as the subject of a clause, in combination with a verb and hence, a VP. As a consequence, a single word (like "people") is also a phrase, because its category feature, N, simply does not extend any farther. A single word can be "maximal" if no further projection of the category feature occurs before it is used as a complement of some other head. In this theory, any item that functions as a complement or a modifier, must be considered a phrase, no matter how big or small it is.
Theories of grammar differ, however, in the extent to which they rely on the notion of a phrase. So you might get other answers in other theories.
(Sorry for not providing literature in English; the above is found in German in https://de.wikipedia.org/wiki/Phrase_(Linguistik)#Phrasen_tragen_Kategoriemerkmale but the references there are all German textbooks).
"Socrates is mortal" and "Man is mortal" are standard examples in introductions to classical logic. There is hardly any doubt that these form valid propositions.
The unusual syntax ("So, here is there") and, let's say, this being the internet where foreign speakers are in the majority, it seems very liky that OP is not a native speaker and that they have a different itch to scratch, in case of a GTP bot not a speaker of any language most likely.
Therefore it is nonsense to bicker about the definition of "phrase".