SN4 ""

No	Pattern	Freq
1	at the [noun prp] international	34
2	at the [noun prp] national	34
3	at the us [adj]	27
4	at the [noun prp] royal	21
5	at the london [adj]	19
6	at the [noun prp] open	16
7	at the [noun prp] nuclear	15
8	at the edinburgh [adj]	14
9	at the [noun prp] general	12
10	at the [noun prp] medical	10
11	at the birmingham [adj]	9
12	at the un [adj]	9
13	at the [noun prp] military	9
14	at the [noun prp] european	9
15	at the [noun prp] social	8
16	at the [noun prp] supreme	8
17	at the uk [adj]	7
18	at the [noun prp] annual	7
19	at the [noun prp] technical	7
20	at the [noun prp] naval	6
21	at the bbc [adj]	6
22	at the [noun prp] fair	6
23	at the [noun prp] central	6
24	at the oxford [adj]	6
25	at the bristol [adj]	6
26	at the [noun prp] good	6
27	at the [noun prp] flying	5
28	at the [noun prp] indoor	5
29	at the east [adj]	5
30	at the [noun prp] atomic	5