Rt，这样会方便复制。

Sample Input:

3
5
1000 1000 BIRD
2000 1000 BIRD
2000 2000 BIRD
1000 2000 BIRD
1500 2010 NOT BIRD
3
1500 1500
900 900
1400 2020
3
500 700 NOT BIRD
501 700 BIRD
502 700 NOT BIRD
2
501 600
502 501
1
100 100 NOT BIRD
3
107 93
86 70
110 115

Sample Output:

Case #1:
BIRD
UNKNOWN
NOT BIRD
Case #2:
UNKNOWN
NOT BIRD
Case #3:
UNKNOWN
UNKNOWN
UNKNOWN