WHAT IS THE POSSESSVIVE AND THE COMMON NOUNS OF CINDY STANDS ON THE BOARDWALKS STEP?

In the phrase "Cindy stands on the boardwalk's step," "Cindy" is a proper noun, while "boardwalk" and "step" are common nouns. The possessive noun is "boardwalk's," indicating that the step belongs to the boardwalk. Therefore, the possessive noun is "boardwalk's," and the common nouns are "boardwalk" and "step."