Question: who has the last name Ferreira and scored 20 oals in the league, between 1997-98?
Sentence (from "Rivaldo"): Rivaldo Vítor Borba Ferreira (born 19 April 1972), known as Rivaldo (] ), is a Brazilian former professional footballer and the current president of Mogi Mirim Esporte Clube in Brazil.
Relevant evidence: Yes