1. innerHTML = '<b>Hello</b>'

   ---

2. innerHTML = 1.innerHTML

   ---

3. innerHTML = 1.textContent

   ---

4. textContent = 1.innerHTML

   ---

5. innerHTML = 4.innerHTML

   ---

6. innerHTML = 4.textContent

   ---

7. textContent = '<b>Hello</b>'

   ---

8. innerHTML = 7.innerHTML

   ---

9. innerHTML = 7.textContent