按角色分组算出每个角色按有办公室和没办公室的统计人数(列出角色，数量，有无办公室,注意一个角色如果部分有办公室，部分没有需分开统计）
数据
|
Role |
Name |
Building |
Years_employed |
|
Engineer |
Becky A. |
1e |
4 |
|
Engineer |
Dan B. |
1e |
2 |
|
Engineer |
Sharon F. |
1e |
6 |
|
Engineer |
Dan M. |
1e |
4 |
|
Engineer |
Malcom S. |
1e |
1 |
|
Artist |
Tylar S. |
2w |
2 |
|
Artist |
Sherman D. |
2w |
8 |
|
Artist |
Jakob J. |
2w |
6 |
|
Artist |
Lillia A. |
2w |
7 |
|
Artist |
Brandon J. |
2w |
7 |
|
Manager |
Scott K. |
1e |
9 |
|
Manager |
Shirlee M. |
1e |
3 |
|
Manager |
Daria O. |
2w |
6 |
|
Engineer |
Yancy I. |
null |
0 |
|
Artist |
Oliver P. |
null |
0 |
