Complex sentence: Finland legalized registered partnerships in 2002, which gave same-sex couples all rights except adoption and surname, in vitro fertilization (IVF) was allowed for lesbian couples in 2007 and stepchild adoption became possible for all same-sex couples in 2009.
Split into simpler sentences: Finland legalized registered partnerships in 2002, which gave same-sex couples all rights except adoption and surname. In vitro fertilization (IVF) was allowed for lesbian couples in 2007 and stepchild adoption became possible for all same-sex couples in 2009.