>>> from eurovision import score

>>> score("FRA:10 points. GBR:03 points. POR:00 points. ",'POR')
0
>>> score("FRA:10 points. GBR:03 points. POR:00 points. ",'FRA')
10
>>> score("FRA:10 points. GBR:03 points. POR:00 points. ",'GBR')
3
>>> score("FRA:10 points. GBR:03 points. POR:00 points. ",'ITA')
-1
>>> score("FRA:10 points. GBR:03 points. POR:01 points. ",'POR')
1
>>> score("FRA:00 points. GBR:03 points. POR:00 points. ",'FRA')
0