Computer Science Publications: conference vs journal on application form
Discuss this with the contact person for the fellowship.

Pretty much every job posting and funding call has a contact person listed, who you can call or email to actually discuss what they are looking for. This is an underutilised resource.  

If you talk to this person you can find out the best way to fill out the form, and it is also a great way to alert them to this issue, put you on the map as a candidate, and find out anything else about what they are looking for in this fellowship.