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Answer: Context: How to stop erosion on a river bank<br>Use coir netting that's 700-900 grams per square meter (gsm). Coir netting is made from coconut fibers and is biodegradable. Normal or heavy duty netting should be used when there is a large amount of water flow.

Hypothesis: Banks are associated with rivers.

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Answer: Context: How to choose an ergonomic office chair<br>Look for the ability to adjust the chair's height. The height of your ergonomic chair should be fully adjustable. The chair's seat should be easy to move either upwards or downwards.

Hypothesis: Changing how high the chair is very important while choosing a ergonomic office chair

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Answer: Context: How to recognize thrush symptoms (oropharyngeal candidiasis )<br>Look for white lesions in the mouth. These lesions (a catch-all term for damaged or abnormal tissue) are plaque-like because they are raised and can be in various sizes or come together to cover larger areas. The lesions are typically white and look like cottage cheese, though they might also be red and raw-looking.

Hypothesis: Thrush can cover large areas of the mouth.

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Answer:
Context: US Secretary of Defense James Mattis prepares to welcome Vice President Mike Pence to the Pentagon in Arlington, Virginia, on Thursday, Dec. 20. EFE-EPA/Erik S. Lesser US President Donald Trump announced Thursday that Gen. James Mattis will leave the post of defense secretary. "General Jim Mattis will be retiring, with distinction, at the end of February, after having served my Administration as Secretary of Defense for the past two years," Trump wrote on Twitter.

Hypothesis: US Secretary of Defense James Mattis has been to Canada.