Complex sentence: Several model relationships exist for European countries that are not EU members but the government's White Paper of February 2017 suggests that Britiain will not be seeking to adopt either the' Norwegian model'or' Swiss model'.
Split into simpler sentences: Several model relationships exist for European countries that are not EU members. Judging from the government's White Paper of February 2017, it would seem that Britiain will not be seeking to adopt either the' Norwegian model'or' Swiss model'.