| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | lighting grid | theater industry | Essential infrastructure for stage lighting and effects in theater productions | 1 |
| 2 | lighting grid | theater industry in the US | Essential for stage lighting and rigging in theaters and performance venues | 1 |
| 3 | lighting grid | theater industry in the United States | Essential infrastructure for stage lighting and rigging in theaters and performance spaces | 1 |
| 4 | lighting grid | theater production culture | Essential part of stage setup for theater and event productions | 1 |