For an amendment, you have three sections:
the "+" section lists people having voted for the amendment,
the "-" section lists people having voted against,
the "0" section lists people having abstained
Only the surnames of the MEP are listed. They are listed inside their political group. The two biggest groups in European Parliament are PPE (European People's Party, centre-right) and S&D (Progressive Alliance of Socialists and Democrats, centre-left)
See this list of political groups: https://en.wikipedia.org/wiki/Political_groups_of_the_Europe...
It's from page 19, Pilar Del Castillo Vera section.