21
1 3 prentice,hall
2 3 addison,wesley
3 3 bob,carol,ted,alice
4 3 von,neumann
5 2 eckert,mauchly
6 2 boole,babbage
7 1 romeo,juliet
8 1 laurel,hardy
9 1 a_g_bell,watson
10 1 abbott,costello
11 1 hansel,gretel
12 1 the_judges
-1 -1 xx
596574216
