I have a white telephone in my rucksack.
I have black headphones in my rucksack.
I have a black purse in my rucksack.
I have a book of Logic in my rucksack.
I have a gray notebook in my rucksack.
I have a brown portfolio in my rucksack.
I have a casing makeup in my rucksack.
I have my season-ticket of city in my rucksack.