Support in data cubes

Support in data cubes

I am asked to find the number of cells in a data cube, with support
greater than 0, assuming that I have only one row in my fact table.
According to this link (under the heading Iceberg-cubes)
http://www2.cs.uregina.ca/~hamilton/courses/831/notes/dcubes/dcubes.html
Now, according to the definition of minimum support is the minimum number
of tuples in which a combination of attribute values must appear to be
considered frequent. In this case the support should be 1, since only 1
rows exist. But how can I find the number of cells with support >0 in the
corresponding data cube. Any pointers in this regard is also appreciated.
Thanks in advance.