Input:

How to manage a citrus tree nursery<br>Familiarize yourself with the citrus plants and trees being grown. [substeps] Though citrus trees may seem to have a lot of common, significant differences between breeds and varieties do exist. Learn how much water, sunlight, and fertilizer is required to support the citrus trees under your care.

Sentence: you may have to learn some things to know how to support the citrus trees under your care.

Output: Yes

Input:

There are four identified subtypes of Ebola virus. Three of the four have caused disease in humans: Ebola-Zaire, Ebola-Sudan, and Ebola-Ivory Coast. The fourth, Ebola-Reston, has caused disease in non-human primates, but not in humans.

Sentence: 75% of Ebola cases cause disease in humans.

Output: It's impossible to say

Input:

Eyebrow Waxing<br>Dan recently took his daughter to have her eyebrows waxed. Dan had never seen the procedure before and was intrigued. Dan watched intently as the specialist placed the wax on the eyebrow. Dan, however, was startled when the specialist ripped the hair off. Dan was amazed his daughter went through such pain for her eyebrows.

Sentence: Dan knew about the hair being ripped out

Output: No

Input:

Brian Helps Out<br>Five-year-old Brian was watching the news with his parents. When pictures of the Louisiana flood came on, the child cried. At dinner, he worried what children in Louisiana were eating. The next day, his teacher helped him write a letter to the school. Brian's letter raised 400 cans and boxes of food for The Red Cross!

Sentence: Brian was happy that he could help the children in Louisiana.

Output:
It's impossible to say