struct Manufacturer<'a>
{
    name: &'a str
}

struct Date<'a>
{
    //YYYYMMDD
    value: &'a str
}

trait product {
    fn get_manufacturer<'a>(&self) -> Manufacturer<'a>
    {
        self.manufacturer
    }
    fn get_release_date<'a>(&self) -> Date<'a>
    {
        self.release_date
    }
    fn get_model<'a>(&self) -> &'a str
    {
        self.model
    }
}


struct Hardware<'a>
{
    manufacturer: Manufacturer<'a>,
    release_date: Date<'a>,
    model: &'a str
}

impl <'a> product for Hardware<'a>
{
}

struct Software<'a>
{
    manufacturer: Manufacturer<'a>,
    release_date: Date<'a>,
    model: &'a str
}

impl <'a> product for Software<'a>
{
}

struct System<'a>
{
    hardarray: Vec<Hardware<'a>>,
    softarray: Vec<Software<'a>>
}

fn main()
{
}