There is some statistical information about planets and their moons in this table:
| planet | moons | is_dwarf |
|---|---|---|
| Varda | 1 | TRUE |
| Salacia | NULL | TRUE |
| Earth | 1 | FALSE |
| Ceres | 0 | TRUE |
| Eris | NULL | TRUE |
| Mars | 2 | FALSE |
| Mercury | 0 | FALSE |
| Pluto | 5 | FALSE |
| Haumea | 2 | TRUE |
In the answer box, type in the results that these functions will return:
- COUNT(moons)
- COUNT(*)
- COUNT(DISTINCT moons)
Please, do not change the order of the functions and separate the execution results by single spaces.