IF <expr> THEN <stmts> { ELSIF <expr> THEN <stmts> ... } [ ELSE <stmts> ] END
<expr> must be a boolean-valued expression. Here is an example:
IF Text.Equal(txt,"Strawberry") THEN IO.Put("Not bad") ELSIF Text.Equal(txt,"Avacado") THEN IO.Put("Yuck!") ELSIF Text.Equal(txt,"Chocolate") THEN IO.Put("Yum") ELSE IO.Put("Nah.") END