Problem: Continue the following story.

We decided to order diamonds for our new engagment rings instead of rubies, since the 
OPTIONS:
- rubies were attractive.
- diamonds were attractive.
Here's how I want to continue it: diamonds were attractive.

Problem: Continue the following story.

Her anxiety was high at the airport but lower at the train station, since the 
OPTIONS:
- airport was so noisy.
- train station was so noisy.
Here's how I want to continue it: airport was so noisy.

Problem: Continue the following story.

The cancer has stopped since the patient took the medicine compared to the therapy since the 
OPTIONS:
- medicine was ineffective.
- therapy was ineffective.
Here's how I want to continue it:
therapy was ineffective.