| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | health service | 2041 |
|
| 2 | community service | 230 |
|
| 3 | fire service | 214 |
|
| 4 | information service | 212 |
|
| 5 | customer service | 211 |
|
| 6 | education service | 194 |
|
| 7 | prosecution service | 193 |
|
| 8 | ambulance service | 177 |
|
| 9 | bus service | 176 |
|
| 10 | prison service | 172 |
|
| 11 | security service | 125 |
|
| 12 | news service | 121 |
|
| 13 | room service | 118 |
|
| 14 | debt service | 115 |
|
| 15 | probation service | 114 |
|
| 16 | memorial service | 111 |
|
| 17 | intelligence service | 99 |
|
| 18 | library service | 98 |
|
| 19 | quality service | 92 |
|
| 20 | lip service | 91 |
|
| 21 | world service | 89 |
|
| 22 | employment service | 83 |
|
| 23 | funeral service | 81 |
|
| 24 | counselling service | 77 |
|
| 25 | church service | 67 |
|
| 26 | telephone service | 67 |
|
| 27 | government service | 64 |
|
| 28 | morning service | 59 |
|
| 29 | care service | 59 |
|
| 30 | air service | 58 |
|
