From the passage provided, extract where the Fembe language is spoken.
Fembe, or Agala, is a Trans–New Guinea language of New Guinea, spoken in the plains east of the Strickland River.
Strickland River
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: From the passage provided, extract where the Fembe language is spoken.
### Input: Fembe, or Agala, is a Trans–New Guinea language of New Guinea, spoken in the plains east of the Strickland River.
### Response: Strickland River