In symbolic computation (or computer algebra), at the intersection of mathematics and computer science, the Risch algorithm is an algorithm for indefinite integration. It is used in some computer algebra systems to find antiderivatives. It is named after the American mathematician Robert Henry Risch, a specialist in computer algebra who developed it in 1968.
The Risch algorithm system developed in the 1960's is used exclusively to find antiderivatives. OPTIONS:
- Yes
- It's impossible to say
- No
A: It's impossible to say

input hypothesis: The Yokosuka B4Y was being used by the Imperial Japanese Navy Air Service in the year 1940.
Context: The Yokosuka B4Y, (Navy Type 96 Carrier Attack Bomber), carrier torpedo bomber was used by the Imperial Japanese Navy Air Service from 1936 to 1943. The B4Y replaced the Mitsubishi B2M2 and was the last biplane bomber used operationally by the Imperial Japanese Navy. The Allied reporting name was "Jean".
OPTIONS:
- Yes
- It's impossible to say
- No
true or false: Yes

Context:
Southern Nevada (often abbreviated as SNV) is the region of Nevada which includes the Las Vegas Valley. Southern Nevada also includes the areas in and around Tonopah, Hawthorne, Pahrump, and Pioche, though some organizations based in the Las Vegas area (e.g., the Southern Nevada Health District) effectively use the term to refer to Clark County only.
Hypothesis: You can gamble in at least part of SNV OPTIONS:
- Yes
- It's impossible to say
- No
It's impossible to say

Input: OPTIONS:
- Yes
- It's impossible to say
- No

North East Lincolnshire is a unitary authority area in the Yorkshire and the Humber region of England, bordering the unitary authority of North Lincolnshire and the non-metropolitan county of Lincolnshire. The population of the Unitary Authority at the 2011 Census was 159,616. These three administrative units make up the ceremonial county of Lincolnshire.

Sentence: North East Lincolnshire is a popular authority area in the Yorkshire and the Humber region of England.

Output: It's impossible to say

Problem:
Read the following paragraph and determine if the hypothesis is true:

Stephen Devassy (Malayalam: , born 23 February 1981) is a musician hailing from Palakkad, Kerala. He started his career at an early age, and has performed on stage around the world. He also holds the record for being the highest Asian scorer in Piano exams from Trinity college of music,london

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Stephen Devassy was a musician during 1981.
****
Answer:
It's impossible to say

Phase contrast magnetic resonance imaging (PC-MRI) is a specific type of magnetic resonance imaging used primarily to determine flow velocities. PC-MRI can be considered a method of Magnetic Resonance Velocimetry. Since modern PC-MRI is typically time-resolved, it can also be referred to as 4D imaging (three spatial dimensions plus time).
Modern PC-MRI is typical time-resolved, it can also be referred to as 3D imaging( three spatial dimensions). OPTIONS:
- Yes
- It's impossible to say
- No
A:
No