Input:

Stokes shift is the difference (in wavelength or frequency units) between positions of the band maxima of the absorption and emission spectra (fluorescence and Raman being two examples) of the same electronic transition. It is named after Irish physicist George G. Stokes.

Sentence: The shift occurs within one second.

Output: It's impossible to say

Input:

How to time your trip to shanghai<br>Consider shanghai's climate and weather. Shanghai has a climate comparable to that of the united states' southeast coastal states. The spring months of march through may are mild and temperate, while temperatures in the summer rise drastically and cause oppressive heat throughout the city.

Sentence: Shanghai is a city.

Output: Yes

Input:

The Portobello Film Festival is an independent international film festival based in London, which annually premiers over 700 new films, including features, shorts, documentaries, music films and animation. Additionally, workshops and talks with top film directors (such as Stephen Frears and John Maybury) are also featured. Admission to the three-week-long festival is free of charge.

Sentence: the agent is aged 26

Output: It's impossible to say

Input:

Ray Troll (born March 4, 1954) Attended Wichita Heights High School in Kansas, graduating in 1972. He is an American artist based in Ketchikan, Alaska. He is best known for his scientifically accurate and often humorous artwork. His most well known design is "Spawn Till You Die", which has appeared in many places including the film Superbad and being worn by Daniel Radcliffe

Sentence: Ray Troll's art has been in a hollywood film

Output:
Yes