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:
| class | railway number (s) | quantity | year (s) of manufacture | type |
| bw | 1 - 5 | 5 | 1887 - 1900 | a1 bm |
| dw ( de ) | 1 - 5 | 5 | 1895 - 1901 | a1 n2 |
| dw ( de ) | 6 - 17 | 12 | 1903 - 1909 | a1 h2 |
| aw | 1 | (1) | (1897) | bo′2′ g2t |
| dwss ( de ) | 1 | 1 | 1907 | (1a) 2′ h2 |
Title:
list of württemberg locomotives and railbuses
Statement:
there are an equal amount of type a1 n2 and a1 bm
Answer:
supported