Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.
Input: Question: How long did the battle in which the Habsburg Austrian army of Paul Kray triumphed over the Republican French army last? Passage:The 1799 campaign in Italy began with the Battle of Verona, a series of costly but indecisive clashes around Verona on 26 March. At the Battle of Magnano on 5 April, the Habsburg Austrian army of Paul Kray triumphed over the Republican French army of Barthelemy Louis Joseph Scherer. While suffering losses of 4,000 killed and wounded and 2,000 captured, Kray's Austrians inflicted casualties of 3,500 killed and wounded and captured 4,500 men, 18 artillery pieces and seven colors from the French. Two days later, a distraught Scherer begged to be relieved of command. Michael von Melas arrived to take command of the Austrian army from Kray on 9 April. Hearing that 12,000 Austrians were approaching from the Tyrol to the north, Scherer abandoned the line of the Mincio River on 12 April. Leaving 12,000 troops in the fortress of Mantua and 1,600 more in Peschiera del Garda, the demoralized French commander ordered his crippled army to withdraw. As the soldiers fell back, the skies opened up and turned the retreat into a sodden nightmare.

Output:
b