It is formed on the basis of natural or legal ties, by the free decision of a man and woman to contract matrimony or by their responsible resolve to comply with it'. 2 Recognition of same-sex relationshipsĪrticle 13 of the Colombian Constitution of 1991 states that 'the State will provide conditions for the equality to be real and effective, and will adopt measures in favour of marginalised or discriminated groups.'Īrticle 42 of the Constitution states 'the family is the basic nucleus of society.