Step 1: Select rows where 'species' is 'proteus mirabilis'.
| species |
indole |
methyl_red |
voges___proskauer |
citrate |
| escherichia coli |
positive |
positive |
negative |
negative |
| shigella spp |
negative |
positive |
negative |
negative |
| salmonella spp |
negative |
positive |
negative |
positive |
| klebsiella spp |
negative |
negative |
positive |
positive |
| proteus vulgaris |
positive |
positive |
negative |
negative |
| proteus mirabilis |
negative |
positive |
negative |
positive |
| enterobacter aerogenes |
negative |
negative |
positive |
positive |
Step 2: Select rows where 'methyl_red' is 'positive'.
| species |
indole |
methyl_red |
voges___proskauer |
citrate |
| proteus mirabilis |
negative |
positive |
negative |
positive |
Step 3: Use a `CASE` statement to return TRUE if the number of rows is equal to 1, otherwise return FALSE.
| species |
indole |
methyl_red |
voges___proskauer |
citrate |
| proteus mirabilis |
negative |
positive |
negative |
positive |
Prediction: TRUE