Input: 

Perhaps there is no expansion, at least not due to a big bang which never happened. About 20 years ago, Halton Arp and John Bahcall published a debate in The Redshift Controversy, presenting both sides of the argument.

Sentence: John Bahcall published a debate 20 years ago.

Output: Yes


Input: 

CHICO — A panel of experienced rose gardeners will lead discussions on choosing the right roses, pest control and disease management during a meeting of the Butte Rose Society on Feb. 26. The meeting will begin at 7 p.m. at Veterans Memorial Hall, 554 Rio Lindo Ave. The panel will consist of members Cathy Fowler, Mary McCormick, Shauna Quinn, John Smith, Dave Sinclear and Cynthia Wright — all sharing more than 100 years of experience growing roses. For information, call Rosemarie Imhoff at 342-9033.

Sentence: The meeting is on a leap day. 

Output: No


Input: 

Email the author. Check out a view of the Falcon 9 launch Monday from our camera at the Kennedy Space Center press site about three miles from pad 39A. The rocket blasted off at 7:15 a.m. EDT (1115 GMT) with a top secret spy satellite for the National Reconnaissance Office. Monday's mission marked the 33rd flight of a Falcon 9 rocket, and the fourth time one of the vehicle's first stages has landed at Cape Canaveral. Follow Stephen Clark on Twitter: @StephenClark1.

Sentence: There hav ebeen previous Falcon 9 rocket flights

Output: Yes


Input: 

How to finish wood<br>Sand down the wood. Wood will have flaws like scratches and dents. Whether marks have come from the machines at the mills, or it has become scratched or gouged during handling, or from wear and tear.

Sentence: The machines at the wood mills cost about $15000.

Output: