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

Typhoon Xangsane was downgraded to a tropical storm Sunday as it moved inland from the central Vietnam coast, where it killed two people, injured at least 80 others and damaged hundreds of homes, officials and state-controlled media reported.

Sentence: Typhoon Xangsane was downgraded to a category 4.

Output: No
Problem:
Read the following paragraph and determine if the hypothesis is true:

Carex tricephala is a species in the genus "Carex", family Cyperaceae. It is one of only about seven species in "Carex" sect. "Scabrellae". Members of this section have leaf-like bracts, and small spicate inflorescences. "Carex tricephala" is native to Southeast Asia, reported from Cambodia, Indonesia, Laos, Myanmar, Thailand, Vietnam and the Chinese province of Yunnan.

OPTIONS:
- Yes
- It's impossible to say
- No
Hypothesis: Carex tricephala is poisonous
****
Answer:
It's impossible to say
[Q]: Carissa is a genus of shrubs or small trees native to tropical and subtropical regions of Africa, Australia and Asia. Until recently about 100 species were listed, but most of them have been relegated to the status of synonyms or assigned to other genera, such as "Acokanthera". Carissa once had dozens of recognized species. OPTIONS:
- Yes
- It's impossible to say
- No
[A]: Yes
Problem: How to wake up in the middle of the night<br>Practice by waking up at the same time for a month. Nerves in your brain control your body's clock, known as your circadian rhythm. This rhythm is established by following a predictable routine, which is why you are able to wake up at the same time on the weekend as you are during the week if all factors are equal.

Based on the paragraph above can we conclude that "Practice by sleeping only 3 times a week."? OPTIONS:
- Yes
- It's impossible to say
- No

A: No
Q: The majority of infected people acquire HIV by the time they are 3.
In Africa today, the majority of infected people acquire HIV by the time they are in their 20s or 30s and, on average, die within ten years.
OPTIONS:
- Yes
- It's impossible to say
- No
A: No
Q: Tevatron cost a lot of money to make
The stupendous power of the Tevatron made possible the 1995 discovery of the top quark - the last of six flavors of quarks predicted by the standard model theory of particle physics.
OPTIONS:
- Yes
- It's impossible to say
- No
A:
It's impossible to say