IRS Schedule E - Multi-Unit Property

[Sun Casper]

I have search for a while on t his specific question but cannot find an answer. When filling out the IRS SChedule E for a multi unit property,

do i list each apartment separately or do i have to list it as a "property". 1 "property" has 4 units or apartments with different

rental days and expenses, etc. I am unsure if i am suppose to list each unit as a property or each building as a property. If it is per

building how do I answer the other questions about rental days (most critical) or rather rental income so as to ensure i am providing the

information the IRS requires. Thank you in advance for any response. 

-sun