| However, comparison of these extant hemichordates with the erect, fenestrate colonies of Dictyonema is problematical. |
| I feel that it remains problematical to try to determine the politics of a source by looking at who cites it. |
| The wide political diversity in the resistance proved extremely problematical. |
| Basements can be problematical, due to lack of light and circulation of air. |
| Since his descendants were in hiding, tracing a line of authority became problematical. |
| The gear change was a weird electro-pneumatic device and at the end of the 1935 year was still problematical. |
