No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] [noun prp] over a period [prep] | 6 | |
2 | [prep] [noun prp] over a period [prep] | 6 | |
3 | [noun prp] [noun] over a period [prep] | 6 | |
4 | [noun prp] over a period [prep] [adj] | 6 | |
5 | [noun prp] over a period [prep] [num] | 5 |