| comprise a board element | 0.25 |
| degrade over time | 0.25 |
| small | 0.47 |
| large | 0.44 |
| heavy | 0.39 |
| shaped | 0.38 |
| shatterproof | 0.30 |
| durable | 0.30 |
| solid | 0.22 |
| lightweight | 0.16 |
| tempered glass | 0.81 |
| polycarbonate | 0.71 |
| acrylic | 0.62 |
| large boxes | 0.39 |
| hinged wooden panels | 0.31 |
| other materials | 0.31 |
| introduced | 0.39 |
| constructed | 0.38 |
| used to hit the”backboa… | 0.31 |
| installed | 0.31 |
| lifted | 0.31 |
| removed | 0.25 |
| achieved with any kind … | 0.16 |