11.   The mystery begins when the father finds a strange man lying in the snow with no tracks around him.

n. + begin >>共 1326
company 1.92%
talk 1.47%
season 1.44%
trial 1.32%
government 1.26%
official 1.15%
people 1.01%
police 0.93%
work 0.90%
game 0.72%
mystery 0.02%
mystery + v. >>共 127
be 50.22%
surround 7.47%
remain 6.00%
deepen 4.39%
begin 1.61%
have 1.46%
continue 1.32%
end 1.17%
solve 1.02%
start 0.88%
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