SN4 ""

No	Pattern	Freq
1	[noun] is that [prep]	574
2	[noun sg] is that [prep]	511
3	[verb] is that [prep]	83
4	[adj] is that [prep]	78
5	[noun pl] is that [prep]	48
6	[adj] is that [prep]	41
7	[pron] is that [prep]	38
8	[adv] is that [prep]	33
9	[adv] is that [prep]	29
10	[pers pn] is that [prep]	27
11	fact is that [prep]	22
12	point is that [prep]	22
13	difference is that [prep]	22
14	point is that [prep]	22
15	difference is that [prep]	22
16	[to-vb] is that [prep]	22
17	[vb pp] is that [prep]	22
18	fact is that [prep]	22
19	it is that [prep]	21
20	it is that [prep]	21
21	[det] is that [prep]	19
22	problem is that [prep]	18
23	[vb infin] is that [prep]	18
24	problem is that [prep]	18
25	result is that [prep]	16
26	result is that [prep]	16
27	truth is that [prep]	15
28	truth is that [prep]	15
29	here is that [prep]	14
30	here is that [prep]	14