OK, I see.
Could you save the .csv with ; as a separator, as this will make the reading a bit easier, since activity uses , inside the text?
Let’s make sure I understand your use case.
The “regular activity” is defined by category? If so, I assume you would like to group the activities into regular and not regular. Which categories would belong to which class?
Could you post an example for each case?
If single_person is set to 0, we know, that there are more than one person in the image.
How do you know the person in the image is not doing the regular activity?