Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Province | Population | Region | Name of City | Districts |
| --- | --- | --- | --- | --- |
| Lima | 7605742.0 | Lima | Lima | 43.0 |
| Constitutional Province of Callao | 876877.0 | Callao | Callao | 6.0 |
| Arequipa | 864250.0 | Arequipa | Arequipa | 29.0 |
| Trujillo | 811979.0 | La Libertad | Trujillo | 11.0 |
| Chiclayo | 757452.0 | Lambayeque | Chiclayo | 20.0 |
| Piura | 665991.0 | Piura | Piura | 9.0 |
| Maynas | 492992.0 | Loreto | Iquitos | 13.0 |
| Huancayo | 466436.0 | Junín | Huancayo | 28.0 |
| Santa | 396434.0 | Ancash | Chimbote | 9.0 |
| Cusco | 367791.0 | Cusco | Cusco | 8.0 |
| Coronel Portillo | 333890.0 | Ucayali | Pucallpa | 7.0 |
| Ica | 321332.0 | Ica | Ica | 14.0 |
| Cajamarca | 316152.0 | Cajamarca | Cajamarca | 12.0 |
| Sullana | 287680.0 | Piura | Sullana | 8.0 |
| Huánuco | 270233.0 | Huánuco | Huánuco | 11.0 |
| Tacna | 262731.0 | Tacna | Tacna | 10.0 |
| Lambayeque | 258747.0 | Lambayeque | Lambayeque | 12.0 |
| San Román | 240776.0 | Puno | Juliaca | 4.0 |
| Puno | 229236.0 | Puno | Puno | 15.0 |
Question:
What is the region containing the Constitutional Province of Callao?
Answer:
Callao