<human>: Q: What animal byproduct was imported to Plymouth in the 19th century?
 A: Aside from the dockyard in the town of Devonport, industries in Plymouth such as the gasworks, the railways and tramways and a number of small chemical works had begun to develop in the 19th century, continuing into the 20th century.
 Does the answer correctly answer the question

OPTIONS:
- yes
- no
<bot>: no