I'm using NHibernate first time and in this line it throws exception for me

```
var total = session
                    .QueryOver<Comment>().Where(p => p.Entry.Author == username)
                    .ToRowCountQuery()
                    .FutureValue<int>();

                var results = session
                    .QueryOver<Comment>().Where(p => p.Entry.Author == username)
                    .Fetch(x => x.Entry).Eager()
                    .OrderBy(x => x.Posted).Desc()
                    .Skip(skip)
                    .Take(take)
                    .List();

```

The Exception is 

> 
> could not resolve property: Entry.Author of: FunnelWeb.Model.Comment
> 
> 
> 

I guess, the problem is that `Entry` object doesn't loaded here. How can I do that trick with Nhibernate?