Problem: How to clean vinyl flooring<br>Use a doormat to keep the floor clean. The substances you track into your house on your shoes are damaging to vinyl flooring. Dirt, tiny pits of gravel, and chemicals from asphalt are abrasive to the vinyl, and over time will cause it to get scratched and yellowed.

Based on the paragraph above can we conclude that "vinyl flooring has been used by dan"? OPTIONS:
- Yes
- It's impossible to say
- No

A: It's impossible to say

Problem: But they see a compassionate, strong, great first lady in Laura Bush. I can't tell you how lucky I am. When I met her in the backyard at Joe and Jan O'Neill's in Midland, Texas, it was the classic backyard barbecue. O'Neill said, "Come on over. I think you'll find somebody who might interest you. "So I said all right. Bopped over there. There was only four of us there. And not only did she interest me, I guess you would say it was love at first sight.

Based on the paragraph above can we conclude that "There were more than four people at the barbecue"? OPTIONS:
- Yes
- It's impossible to say
- No

A: No

Problem: How to calculate btu per square foot<br>Measure your square footage. Measure the square footage of each room you plan to heat or cool and add them together. If you're installing a furnace or central air conditioning system, this typically includes every room.

Based on the paragraph above can we conclude that "central air conditioning system has a q"? OPTIONS:
- Yes
- It's impossible to say
- No

A:
No