question: How high do the mountains between Algarve and the Alentejo region reach ?
answer: 900 metres ( 3,000 ft )
turker_answer: The mountains between Algarve and the Alentejo region reach 900 metres ( 3,000 ft ) .
rule-based: The mountains between Algarve and the Alentejo region reach do 900 metres ( 3,000 ft .