is stronger than they in a sentence

1. She yells at them saying that she is stronger than they think.
2. Rates have climbed since November because investors think the economy is stronger than they expected.
3. What's changed the attitude of bond investors is the prospect that the economy is stronger than they expected.
4. At the same time, he said, many want to be ready to recruit if the economy is stronger than they anticipated.
5. What's more, sellers sometimes raise their prices when demand for their home is stronger than they expected, and that doesn't seem to discourage buyers, O'Hara said.
6. It's difficult to find is stronger than they in a sentence.