1. Write BNF descriptions for the following:

• A FOR statement that supports the following: FOR i = 0 TO 10 STEP 2 DO

...

END FOR

Note that STEP 2 is optional.

• A WHILE statement that supports the following:

WHILE i <= 10 DO

...

END WHILE

Note that the conditional expression should return a Boolean value.

• In both cases, the reserved words are in all capital letters.