LINQ

var query =
    from c in contact
    where c.FirstName.StartsWith("S")
    && c.LastName.StartsWith("A")
    orderby c.LastName
    select c;

var query =
    contact.Where(c => c.FirstName.StartsWith("S")
                        && c.LastName.StartsWith("K")).OrderBy(c => c.LastName);

var query =
    from c in contact
    where c.FirstName.StartsWith("S")
    select new { c.FirstName, c.LastName, c.EmailAddress };

var query =
    contact.Select(c => new
    {
        c.FirstName,
        c.LastName,
        c.EmailAddress
    }).Where(c => c.FirstName.StartsWith("S"));