What is a example of singular possession?

Examples of singular possessive nouns are:

• the anchor's chain
• the boy's bike
• the church's steeple
• the doctor's office
• the egg's shell
• my friend's birthday
• the girl's book
• Helen's car
• the island's beach
• the joker's comeuppance
• the kite's tail
• the Lord's Prayer
• the mansion's gate
• the nanny's job
• the Opera's schedule
• the puppy's mother
• the question's answer
• the rose's color
• Steven Spielberg's career
• the tavern's lights
• my uncle's shop
• the vacation's end
• the water's edge
• the xylophone's tone
• yesterday's technology
• the zealot's rantings