In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

[Q]: Question: What role did Raju play in the Tollywood industrial hit? Passage:In 1984, Krishnam Raju acted in Yuddham, Sardar, Babulugaadi Debba, Kondaveeti Nagulu and S. P. Bhayankar. Later, he acted in the Tollywood industrial hit Bobbili Brahmanna which earned him Filmfare Best Actor Award (Telugu) and Nandi Award for Best Actor. He also remade the film in Hindi as Dharm Adhikari with Dilip Kumar and Jeetendra in 1986. Later, he acted in films such as Raraju, Bharatamlo Shankaravam, Rowdy, Bandee, Tirugubatu, Aggi Raju, Bullet, Ukku Manishi, Ravana Brahma, Neti Yugadharmam and Ugra Narasimham. In 1986, he acted in Tandra Paparayudu portraying the role of Tandra Paparayudu which earned him Filmfare Best Actor Award for the year 1986. The film was premiered at the 11th International Film Festival of India. Later, he acted in films such as Brahma Nayudu, Sardar Dharmanna and Marana Shasanam which earned him Filmfare Best Actor Award for the year 1987. In 1987, he acted in Vishwanatha Nayakudu portraying the role of Srikrishnadevaraya. Later, he acted in films such as Maarana Homam, Kirai Dada, Maa Inti Maha Raju, Antima Teerpu, Prithvi Raj, Prachanda Bharatam, Dharma Teja, Prana Snehitulu, Simha Swapnam, Shri Ramachandrudu, Bhagawan, Two Town Rowdy, Yama Dharma Raju and Neti Siddhartha.

[A]: b


[Q]: Question: Which of the places where the steam railcars were stationed is older? Passage:In addition to the joint railcars of 1903, the London Brighton and South Coast Railway directors asked their Chief Mechanical Engineer, Robert Billinton, to investigate the use of steam or petrol railcars on lightly used services. Billinton died in 1904, before examples could be acquired, but in 1905 his successor Douglas Earle Marsh acquired two steam and two petrol railcars, for comparative purposes with small steam locomotives of the Stroudley A1 and D1 classes fitted for "motor train" or "push-pull" working. The steam railcars were built by Beyer, Peacock and Company and were of a similar design to those supplied by this company to the North Staffordshire Railway. They were stationed at Eastbourne and St Leonards and ran services on the East and West Sussex coast lines. They were both loaned to the War Department in 1918/19 before being sold to the Trinidad and Tobago government.

[A]: b


[Q]: Question: When was the technology used at Mount Wilson, Mount Locke, and Mauna Kea invented? Passage:In the 1970s, astronomers saw some major advances in astronomical imaging technology, beginning with Antoine Labeyrie's invention of speckle interferometry, a process that significantly reduced the blurring effect caused by astronomical seeing. It increased the optical resolution of ground-based telescopes, allowing for more precise measurements of Betelgeuse's photosphere. With improvements in infrared telescopy atop Mount Wilson, Mount Locke and Mauna Kea in Hawaii, astrophysicists began peering into the complex circumstellar shells surrounding the supergiant, causing them to suspect the presence of huge gas bubbles resulting from convection. But it was not until the late 1980s and early 1990s, when Betelgeuse became a regular target for aperture masking interferometry, that breakthroughs occurred in visible-light and infrared imaging. Pioneered by John E. Baldwin and colleagues of the Cavendish Astrophysics Group, the new technique employed a small mask with several holes in the telescope pupil plane, converting the aperture into an ad-hoc interferometric array. The technique contributed some of the most accurate measurements of Betelgeuse while revealing bright spots on the star's photosphere. These were the first optical and infrared images of a stellar disk other than the Sun, taken first from ground-based interferometers and later from higher-resolution observations of the COAST telescope. The "bright patches" or "hotspots" observed with these instruments appeared to corroborate a theory put forth by Schwarzschild decades earlier of massive convection cells dominating the stellar surface.

[A]:
a