pens
There are some pens.
lemons
There aren't any lemons.
eggs
There aren't any eggs.
grapes
There are some grapes.
kangaroos
There aren't any kangaroos.
flowers
There are some flowers.
books
There aren't any books.
grapes
There aren't any grapes.
peppers
There are some peppers.
carrots
There are some carrots.
bananas
There are some banans.
camels
There aren't any camels.
crocodiles
There aren't any crocodiles.
flowers
There aren't any flowers.