Problem: Please answer a question about the following article about Treaty:
A party's consent to a treaty is invalid if it had been given by an agent or body without power to do so under that state's domestic law. States are reluctant to inquire into the internal affairs and processes of other states, and so a "manifest violation" is required such that it would be "objectively evident to any State dealing with the matter". A strong presumption exists internationally that a head of state has acted within his proper authority. It seems that no treaty has ever actually been invalidated on this provision.[citation needed]
A party's consent to a treaty is invalid if it had been given by an agent or body without power to do so under what?
A: that state's domestic law
Problem: Please answer a question about the following article about Canon law:
The Roman Catholic Church canon law also includes the main five rites (groups) of churches which are in full union with the Roman Catholic Church and the Supreme Pontiff:
Which denomination is led by the Supreme Pontiff?
A: Roman Catholic
Problem: Please answer a question about the following article about Montana:
Tracks of the Northern Pacific Railroad (NPR) reached Montana from the west in 1881 and from the east in 1882. However, the railroad played a major role in sparking tensions with Native American tribes in the 1870s. Jay Cooke, the NPR president launched major surveys into the Yellowstone valley in 1871, 1872 and 1873 which were challenged forcefully by the Sioux under chief Sitting Bull. These clashes, in part, contributed to the Panic of 1873 which delayed construction of the railroad into Montana. Surveys in 1874, 1875 and 1876 helped spark the Great Sioux War of 1876. The transcontinental NPR was completed on September 8, 1883, at Gold Creek.
When did the Northern Pacific Railroad reach Montana from the west?
A: 1881
Problem: Please answer a question about the following article about Premier League:
The TV rights agreement between the Premier League and Sky has faced accusations of being a cartel, and a number of court cases have arisen as a result. An investigation by the Office of Fair Trading in 2002 found BSkyB to be dominant within the pay TV sports market, but concluded that there were insufficient grounds for the claim that BSkyB had abused its dominant position. In July 1999 the Premier League's method of selling rights collectively for all member clubs was investigated by the UK Restrictive Practices Court, who concluded that the agreement was not contrary to the public interest.
Why has there been a several court cases against Sky and Premier League?
A:
The TV rights agreement between the Premier League and Sky has faced accusations of being a cartel