fantasyname | Fantasy name generator | Generator Utils library

I'm practicing Functional Dependencies, i'm reading a book related to databases and they provided an example, it goes like this:

A company performs all kinds of sales through different terminals (terminals for payment of debit and credit cards). These terminals belong to different sectors, from hypermarkets to simple candy kiosks. We are interested in knowing the business name, a contact telephone number and legal address, including City and State which are tabulated. The terminals have an identifier that distinguishes them and are sold to a single store (not reuse between different shops). The terminals also have an operating system. Each of the terminals have a certain amount of memory (in MBytes), manufacturing country (also tabulated) and year of importation. Terminals have a ticket reprint service, so they need to store the unique number of the terminal that made the sale, the invoice number associated with it, the date and time of the sale, the amount, the type of card (debit or credit), the card number and in how many installments the payment was made.

Obviously, they gave me a relationship; i have to work on it to obtain the functional dependencies, do you get me?

This is the relationship:

Company(BusinessName, FantasyName, BusinessNumber, Telephonenumber, address, locality, locality_number, state, state_number, terminalid, operatingsystem, idCountry, Country, ImportationYear, idTicket, Billnumber, amount, CardNumber, Memory_quantity, date_and_time_of_sale, card_type, installments_quantity)

So, first of all i replaced the values of that relation; i used letters:

Number of elements inside Company: 22

Then: Company(A, B, C, D, E, F, G , H, I, J , K, L M, N , O, P ,Q, R, S ,T, U, V)

Now, i have to find the dependencies, for example: