SENTENCE thing1 thing2
SE thing1 thing2
(SENTENCE thing1 thing2 thing3 ...)
(SE thing1 thing2 thing3 ...)

Outputs a list whose members are its inputs, if those inputs are not lists. Outputs the members of its inputs, if those inputs are lists.

SENTENCE throws an error if any of its inputs is an array.

SHOW (SENTENCE "A "sentence "is "simply "a "list "of "words)
[A sentence is simply a list of words]

SHOW (SENTENCE "A "sentence [is simply a] "list [of words])
[A sentence is simply a list of words]