No | Pattern | Freq | Relations |
---|---|---|---|
1 | a [noun sg] [prep] [num] hours a | 17 | |
2 | a [noun sg] [prep] [adj] hours a | 17 | |
3 | a [noun sg] [prep] hours [prep] a | 10 | |
4 | a [noun sg] [prep] hours [prep] a | 10 | |
5 | a [noun sg] [prep] hours a [noun] | 8 | |
6 | a [noun sg] [prep] hours a [noun sg] | 8 |