SN4 ""

No	Pattern	Freq
1	[noun] at [art] cost of [noun]	122
2	[noun sg] at [art] cost of [noun]	70
3	[verb] at [art] cost of [noun]	56
4	[vb pp] at [art] cost of [noun]	43
5	[noun pl] at [art] cost of [noun]	36
6	[adj] at [art] cost of [noun]	22
7	[adv] at [art] cost of [noun]	15
8	[num] at [art] cost of [noun]	14
9	[noun prp] at [art] cost of [noun]	13
10	[adv] at [art] cost of [noun]	12
11	[conj] at [art] cost of [noun]	9
12	[coord] at [art] cost of [noun]	8
13	year at [art] cost of [noun]	8
14	[vb base] at [art] cost of [noun]	7
15	built at [art] cost of [noun]	7
16	build at [art] cost of [noun]	7
17	[adj] at [art] cost of [noun]	6
18	year at [art] cost of [noun]	5
19	at [art] [adj] cost of [noun]	59
20	at [art] [adj] cost of [noun]	59
21	at [art] total cost of [noun]	17
22	at [art] total cost of [noun]	17
23	at [art] estimated cost of [noun]	16
24	at [art] estimated cost of [noun]	16
25	at [art] cost of [adj] [noun]	85
26	at [art] cost of [num] [noun]	45
27	at [art] cost of [adv] [noun]	32
28	at [art] cost of [adv] [noun]	32
29	at [art] cost of [art] [noun]	31
30	at [art] cost of [art] [noun]	31