Context:
The ecological problems stem in large part from the fact that the brackish water and productive coastal wetlands and natural areas are often supplied with nutrient-rich irrigation return water, sometimes from rice farming. The Ebro Delta and its wetlands suffer similar water quality problems since they lie around the fringes of the large Delta farm region.
Hypothesis: This issue has been ongoing for 128 years
It's impossible to say
Context:
Design<br>Tim and Alice were getting married. They bought a brand new home. They hired an interior decorator. They loved the work the designer did. They were very happy with their new home.
Hypothesis: they were not happy with the work the interior decorator did
No
Context:
Changing Oil<br>My scooter started to leak oil in the summer. I found that the heat was increasing the pressure. I reduced the amount of oil in the scooter. I watched a video to figure it out. Changing the oil was very easy.
Hypothesis: I did not watch a video to figure out how to change the oil in my scooter.

No