SN4 ""

No	Pattern	Freq
1	[noun pl] of [noun] at	1080
2	[noun pl] of [noun sg] at	706
3	[noun pl] of [noun pl] at	251
4	[noun pl] of [noun prp] at	77
5	[noun pl] of [n mass] at	46
6	years of [noun] at	38
7	levels of [noun] at	21
8	members of [noun] at	21
9	[noun pl] of staff at	21
10	[noun pl] of staff at	21
11	numbers of [noun] at	19
12	[noun pl] of children at	18
13	[noun pl] of child at	18
14	[noun pl] of people at	17
15	[noun pl] of people at	17
16	[noun pl] of age at	15
17	[noun pl] of age at	15
18	parents of [noun] at	14
19	groups of [noun] at	13
20	[noun pl] of pupil at	12
21	hours of [noun] at	12
22	[noun pl] of government at	12
23	[noun pl] of government at	12
24	[noun pl] of pupils at	12
25	types of [noun] at	11
26	needs of [noun] at	11
27	heads of [noun] at	11
28	sets of [noun] at	10
29	amounts of [noun] at	10
30	[noun pl] of water at	10