Problem: Continue the following story.

Robert led the hiking expedition into the wilderness instead of Nelson because
OPTIONS:
- Robert was an inexperienced guide.
- Nelson was an inexperienced guide.
Here's how I want to continue it: Nelson was an inexperienced guide.

Problem: Continue the following story.

The new PC Billy bought for himself would not fit in his old backpack, the
OPTIONS:
- backpack was too wide.
- PC was too wide.
Here's how I want to continue it: PC was too wide.

Problem: Continue the following story.

They needed more cushions on the chair than the sofa because the
OPTIONS:
- chair was harder.
- sofa was harder.
Here's how I want to continue it:
chair was harder.