(1) All natural numbers are integers.
(2) A square has five sides.
(3) The sky is blue.
(4) How are you?
(5) 7 + 2 < 10.
(6) The set of rational numbers is finite.
(7) How beautiful you are!
(8) Wish you all success.
(9) Give me a cup of tea.
(10) 2 is the only even prime.