Complex sentence: The estimated sign (℮) (also referred to as "e-mark") is a mark that is sometimes printed on prepackages in Europe that are filled according to the European Directive 76/211/EEC.
Split into simpler sentences: The estimated sign (℮) (also referred to as "e-mark") is a mark that sometimes can be found on prepackages in Europe. The e-mark indicates that the prepackages are filled according to the European Directive 76/211/EEC.