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:
| headphone model | headphone class | driver - matched db | construction | earpads | termination | us msrp |
| igrado | prestige | 0.1 | plastic | comfort pads | 1 / 8 (3.5 mm) plug | 49 |
| sr60i | prestige | 0.1 | plastic | comfort pads | 1 / 8 (3.5 mm) plug with 1 / 4 adaptor | 79 |
| sr80i | prestige | 0.1 | plastic | comfort pads | 1 / 8 (3.5 mm) plug with 1 / 4 adaptor | 99 |
| sr125i | prestige | 0.1 | plastic | comfort pads | 1 / 4 (6.5 mm) plug | 150 |
| sr225i | prestige | 0.05 | plastic | bowls | 1 / 4 (6.5 mm) plug | 200 |
| sr325is | prestige | 0.05 | aluminum alloy / plastic inner sleeve | bowls | 1 / 4 (6.5 mm) plug | 295 |
| rs2i | reference | 0.05 | hand - crafted mahogany | bowls | 1 / 4 (6.5 mm) plug | 495 |
| rs1i | reference | 0.05 | hand - crafted mahogany | bowls | 1 / 4 (6.5 mm) plug | 695 |
| gs1000i | statement | 0.05 | hand - crafted mahogany | circumaural bowls | 1 / 4 (6.5 mm) plug | 995 |
| ps500 | professional | 0.05 | hand - crafted mahogany / aluminum | bowls | 1 / 4 (6.5 mm) plug | 595 |
Title:
grado labs
Statement:
sr325is is the only one that is made of aluminum alloy / plastic inner sleeve
Answer:
supported