https://www.json.org/ and https://www.crockford.com/mckeeman.html
What is ws? Just guessing, white space?
“name newline nothing alternatives”
"Each alternative is indented on its own line. Each alternative contains items followed by a newline.
alternatives
alternative
alternative alternatives
alternative
indentation items newline"
What are alternatives?
Alternative means an option, a variant, a choice. Something from set of elements. So alternative is an element.
In the article there is example with JSON below.
value //set = value,
object // alternative from set value
array // and this one
string // same here
number // ...
"true" // ...
"false" // ...
"null" // ...
All types (bool,string, int whatever) are also a set and alternatives is all valid values.
P.S. Grammars are hard concept.
