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.

Ex Input:
Question: What is gender of the student murdered in 1999 that Serial investigated in season 1? Passage:Serial is an investigative journalism podcast hosted by Sarah Koenig, narrating a nonfiction story over multiple episodes. The series was co-created and is co-produced by Koenig and Julie Snyder and developed by This American Life. Season one investigated the 1999 murder of Hae Min Lee (Hangul: 이해민), an 18-year-old student at Woodlawn High School in Baltimore. Season two focused on Sergeant Bowe Bergdahl, an American Army soldier who was held for five years by the Taliban, and then charged with desertion. Season three, which debuted in September 2018, explores cases within the Justice Center Complex in the Cleveland area. Serial ranked number one on iTunes even before its debut and remained there for several weeks. Serial won a Peabody Award in April 2015 for its innovative telling of a long-form nonfiction story. As of September 2018, episodes of seasons one and two have been downloaded over 340 million times, establishing an ongoing podcast world record.


Ex Output:
b


Ex Input:
Question: Which of the two pitchers who combined to pitch three shutout innings had the most career no hitters? Passage:The Indians struck first off Marcus Stroman when Carlos Santana drew a leadoff walk in the first and scored on Mike Napoli's two out double, but their starter, Trevor Bauer had to leave the game in the bottom of the inning after allowing two walks and throwing 21 pitches due to a bloody pinkie finger as a result of being cut from a drone a few days earlier. Dan Otero in relief allowed a game-tying home run to Michael Saunders in the second. Napoli's home run in the fourth put the Indians back on top 2−1, but the Blue Jays tied it in the fifth off Zach McAllister when Ezequiel Carrera hit a leadoff triple and scored on Ryan Goins's groundout. Jason Kipnis's leadoff home run in the sixth gave the Indians a 3−2 lead. Stroman was taken out after walking Napoli with one out. Napoli moved to second on a wild pitch by reliever Joe Biagini and scored on José Ramírez's single to make it 4−2 Indians. Cody Allen and Andrew Miller combined to pitch three shutout innings, striking out five batters as the Indians took a 3–0 series lead.


Ex Output:
a


Ex Input:
Question: What is Rubus fruticosus? Passage:Most of the islands have dense cover of bramble Rubus fruticosus and bracken Pteridium aquilinum and grassland along the coastal fringes. Goldenrod (Solidago virgaurea) is locally abundant amongst the heath communities growing on the podzolic soils on the higher parts of the islands. The heaths are classified as a poor fit somewhere between H10 and H11 and the heather (Calluna vulgaris), bell heather (Erica cinerea) and bracken merge into pure bracken on the lower slopes. A feasibility study is needed to decide if the vegetation would benefit from grazing through a Higher Level Stewardship (HLS) agreement. With no resident botanist, together with the difficulty of recording on remote islands, there are not many plant records and the number of species for each of the Eastern Isles was finally published in 1971 from surveys carried out by J D Grose, Mr & Mrs J E Dallas and J E Lousley in 1938 and 1939. Lousley listed 111 species of higher plants in his 1971 Flora, and by 1999 further surveys recorded a similar number (114). Some of the islands have species that are only found on that island and not on the other Eastern Isles such as an oak tree found by Mr and Mrs Dallas on Great Gannick. Possible ancient woodland indicators such as butcher's-broom (Ruscus aculeatus), wood spurge (Euphorbia amygdaloides) and wood small-reed (Calamagrostis epigejos) have also been recorded on Great Gannick. The nationally rare orange bird's-foot (Ornithopus pinnatus) is found on the northern side of Great Ganilly.


Ex Output:

b