=========================================
single-line statements - internal tokens
=========================================

a b

---

(statement (variable) (variable) (line_break))

=========================================
multi-line statements - internal tokens
=========================================

a
b

---

(statement (variable) (variable) (line_break))

=========================================
single-line statements - external tokens
=========================================

'hello' 'world'

---

(statement (string) (string) (line_break))

=========================================
multi-line statements - external tokens
=========================================

'hello'
'world'

---

(statement (string) (string) (line_break))