Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| aircraft | origin | type | versions | in service |
| agusta a109 | italy | recce helicopter | a109eoa - 2 | 12 |
| agusta a129 mangusta | italy | attack helicopter | cbt | 56 |
| bell uh - 1 iroquois | united states | transport helicopter | ab 205 | 42 |
| bell 212 | united states | transport helicopter | ab 212 | 39 |
| bell 412 | united states | transport helicopter | ab 412 | 31 |
| nhi nh90 | european union | transport helicopter | tth | 21 |
| boeing ch - 47 chinook | united states | transport helicopter | ch - 47c | 14 |
| boeing ch - 47 chinook | united states | transport helicopter | ch - 47f | 0 |
| dornier do 228 | germany | utility transport | do 228 - 200 | 3 |
| piaggio p180 avanti | italy | utility transport | p180 m | 3 |
Title:
italian army
Statement:
the boing ch - 47 chinook version ch - 47c has been in service 14 years shorter than the ch - 47f variant
Answer:
refuted