No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun] [Wh det] [vb past] [be] introduced | 9 |
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2 | [noun sg] [Wh det] [vb past] [be] introduced | 8 |
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3 | [Wh det] [vb past] [be] introduced [prep] | 11 |
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4 | [Wh det] [vb past] [be] introduced [prep] | 11 |
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