Given the task definition and input, reply with output. In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Ermindo Ángel Onega (30 April 1940  21 December 1979) was an Argentine footballer, attacking midfielder and forward from River Plate. He played for River Plate from 1957 to 1968, scoring 98 goals in 222 matches. In 1972 he played for Club Atlético Vélez Sársfield, scoring 6 goals in 30 matches., A midfielder is an association football position. Midfielders are generally positioned on the field between their team's defenders and forwards. Some midfielders play a disciplined defensive role, breaking up attacks, and are otherwise known as defensive midfielders. Others blur the boundaries, being more mobile and efficient in passing: they are commonly referred to as deep-lying midfielders, play-makers, box-to-box, or holding midfielders. The number of midfielders on a team and their assigned roles depends on the team's formation; the collective group of these players on the field is sometimes referred to as the midfield., Daniel Onega ( born March 17 , 1945 , in Las Parejas Santa Fe ) is a retired Argentine football player who played most of his career for River Plate . He also played for the Argentina national team between 1966 and 1972 . He is the brother of the late midfielder Ermindo Onega . Onega started his career at River Plate . It was with River Plate that he became the topscorer in the 1966 Copa Libertadores with 17 goals , setting the record for the most goals ever scored in a single season in that tournament , a record that has never been surpassed . He is also the 4th in the all time Copa Libertadores topscorers list with 31 goals in 47 games . In 1972 Onega moved to Racing Club for a season , but he only managed 9 goals and returned to River the following season . In 1973 he moved to Spain to play for Córdoba CF in the Spanish 2nd division , he stayed with the club until 1978 when he moved to Millonarios in Colombia . It was with Millonarios that he won his first and only league title . At the end of the 1978 season Onega retired from football ., Subject: daniel onega, Relation: position_played_on_team_/_speciality, Options: (A) forward (B) midfielder
forward