1.   And companies soon sprang up to sell them.

2.   And other aerial dance companies are springing up across the country as traditional dance companies incorporate aerial elements into their programs.

3.   Apology companies have sprung up in several large cities.

4.   Artificial chromosomes, even human artificial chromosomes, have already been created and patented, the scientists reported, and companies have sprung up to exploit the technology.

5.   Carpet-cleaning companies are springing up by the tons.

6.   Father and son are fairly confident that the company will spring back.

7.   Good duct-cleaning equipment is quite new, and therefore, when ducts can be claened fairly easily, companies will spring up.

8.   In the past year, however, Internet phone companies have sprung up on almost every continent, making rapid inroads into established markets despite their lower quality.

9.   Independent companies have sprung up to develop promotional maneuvers like advertising on Food Emporium shopping bags in exchange for tickets for management.

10.   Indeed, whole companies are springing up around XML.