Context:
How to clean quartz<br>Rinse the quartz off with a power washer. If you have a large amount of quartz with a heavy amount of mud or dirt on it, you can try to rinse it off with a power washer. Set your quartz on the ground (preferably on concrete or asphalt) and rinse off the dirt.
Hypothesis: A power washer will be able to clean the quartz. OPTIONS:
- Yes
- It's impossible to say
- No
Yes
Context:
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.
Hypothesis: Carex tricephala is a common plant. OPTIONS:
- Yes
- It's impossible to say
- No
It's impossible to say
Context:
As a result of the increased taxes announced on February 13, 1998, excise taxes on cigarettes and tobacco sticks vary from $2.25 to $5.35 for a carton of cigarettes and from $1.85 to $2.93 for a carton of tobacco sticks, depending in which province the tobacco products are offered for sale.
Hypothesis: Canadian cigarette taxes are higher than the US OPTIONS:
- Yes
- It's impossible to say
- No

It's impossible to say