SN4 ""

No	Pattern	Freq
1	at [art] national [noun]	499
2	at [art] national [noun sg]	456
3	at the national [noun]	430
4	at the national [noun]	430
5	at [art] national level	104
6	at [art] national level	104
7	at [art] national gallery	71
8	at [art] national gallery	71
9	at a national [noun]	69
10	at a national [noun]	69
11	at [art] national [noun pl]	31
12	at [art] national theatre	23
13	at [art] national theatre	23
14	at [art] national exhibition	19
15	at [art] national institute	19
16	at [art] national exhibition	19
17	at [art] national museum	18
18	at [art] national portrait	16
19	at [art] national portrait	16
20	at [art] national institute	16
21	at [art] national museum	15
22	at [art] national conference	11
23	at [art] national library	11
24	at [art] national library	11
25	at [art] national conference	11
26	at [art] national stadium	9
27	at [art] national [noun prp]	9
28	at [art] national stadium	9
29	at [art] national hospital	8
30	at [art] national hospital	8