1) The success of the business was underpinned by strong leadership.

2) The theory is underpinned by extensive research and data.

3) Trust is underpinned by honesty and transparency in relationships.

4) The company's growth was underpinned by innovative marketing strategies.

5) The building's stability is underpinned by a solid foundation.

6) Public safety is underpinned by robust regulatory measures.

7) The economy is underpinned by consumer spending and business investment.

8) Environmental protection is underpinned by sustainable practices and policies.

9) The peace treaty was underpinned by mutual respect and cooperation.

10) The team's championship win was underpinned by strong teamwork and dedication.