in addition to the involvement of the government of the faroes under the fámjin declaration, the government of the faroes must also be consulted prior to the ratification of international agreements which are of particular importance to the faroe islands, i.e. both international agreements on which the government of the faroes has participated in the negotiations under the fámjin declaration and other international agreements of particular importance to the faroe islands.

How would the previous sentence be correctly capitalized?
Answer: In addition to the involvement of the Government of the Faroes under the Fámjin Declaration, the Government of the Faroes must also be consulted prior to the ratification of international agreements which are of particular importance to the Faroe Islands, i.e. both international agreements on which the Government of the Faroes has participated in the negotiations under the Fámjin Declaration and other international agreements of particular importance to the Faroe Islands.
may contain traces of almonds, pecan- and hazelnuts.

How would the previous sentence be correctly capitalized?
Answer: May contain traces of almonds, pecan- and hazelnuts.
there should eventually be a more option at the end of this menu that connects the user with the built-in sharing options provided by their os.

How would the previous sentence be correctly capitalized?
Answer: There should eventually be a more option at the end of this menu that connects the user with the built-in sharing options provided by their OS.
you also have a great choice of restaurants along the lake.

How would the previous sentence be correctly capitalized?
Answer: You also have a great choice of restaurants along the lake.