This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: Traditionally a sea-power, Portugal has had a strong tradition in the Portuguese fishing sector and is one of the countries with the highest fish consumption per capita. The main landing sites in Portugal (including Azores and Madeira), according to total landings in weight by year, are the harbours of Matosinhos, Peniche, Olhao, Sesimbra, Figueira da Foz, Sines, Portimao and Madeira. Portuguese processed fish products are exported through several companies, under a number of different brands and registered trademarks, such as Ramirez (the world's oldest active canned fish producer), Bom Petisco, Nero, Combate, Comur, General, Lider, Manna, Murtosa, Pescador, Piteu, Tenorio, Torreira and Vasco da Gama.[citation needed] Question: Which company is the world's oldest canned fish producer?
Ramirez

Passage: Energy gives rise to weight when it is trapped in a system with zero momentum, where it can be weighed. It is also equivalent to mass, and this mass is always associated with it. Mass is also equivalent to a certain amount of energy, and likewise always appears associated with it, as described in mass-energy equivalence. The formula E = mc, derived by Albert Einstein (1905) quantifies the relationship between rest-mass and rest-energy within the concept of special relativity. In different theoretical frameworks, similar formulas were derived by J. J. Thomson (1881), Henri Poincare (1900), Friedrich Hasenohrl (1904) and others (see Mass-energy equivalence#History for further information). Question: In what year did Einstein create E = mc2?
1905

Passage: Among all cities in the Mediterranean part of the European Union, Limassol has one of the warmest winters, in the period January February average temperature is 1718 C (6364 F) during the day and 78 C (4546 F) at night, in other coastal locations in Cyprus is generally 1617 C (6163 F) during the day and 68 C (4346 F) at night. During March, Limassol has average temperatures of 1920 C (6668 F) during the day and 911 C (4852 F) at night, in other coastal locations in Cyprus is generally 1719 C (6366 F) during the day and 810 C (4650 F) at night. Question: What is the general temperature of coastal location during the night?
68 C (4346 F)