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:
| name | type | year built | where built | initial owners |
| mountain buck | side | 1857 | portland | ruckle & olmstead |
| hassaloe | stern | 1858 | cascades , washington | bradford bros |
| carrie ladd | stern | 1858 | oregon city | jacob kamm & john c ainsworth |
| julia (barclay) | stern | 1858 | port blakely | oregon steam navigation co |
| wasco | stern | 1858 | port blakeley | oregon steam navigation co |
Title:
list of steamboats on the columbia river
Statement:
in 1857 , ruckle & olmstead built a stern in portland
Answer:
refuted