Read the following description of Voting system and then draw the activity diagram.

Once arrived at the polling station, elector gives the own electoral card to station master who checks

if the polling station number is right $.$ Then he checks the identity document and if ok he gives the

ballot paper to the elector. Then the station master waits for a cabin to get free and he gives the

pencil to the elector and a secretary who signs the registry and put a print on the elector certificate.

Once elector has voted, he$/$she inserts the ballot paper in the urn, giving back the pencil and taking

back the own ID document