Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Pick # | Player | Position | Nationality | NHL team | College/junior/club team |
| --- | --- | --- | --- | --- | --- |
| 71.0 | Gerry Egers | Defence | Canada | California Golden Seals | Sudbury Wolves (NOHA) |
| 72.0 | Charlie Shaw | Defence | Canada | Detroit Red Wings | Toronto Marlboros (OHA) |
| 73.0 | Tim Steeves | Defence | Canada | Vancouver Canucks | Charlottetown Royals (NBSHL) |
| 74.0 | Ian Williams | Right Wing | Canada | Pittsburgh Penguins | University of Notre Dame (NCAA) |
| 75.0 | Pierre Duguay | Centre | Canada | Buffalo Sabres | Quebec Remparts (QMJHL) |
| 76.0 | Camille LaPierre | Centre | Canada | Los Angeles Kings | Montreal Junior Canadiens (OHA) |
| 77.0 | Alan Globensky | Defence | Canada | Minnesota North Stars | Montreal Junior Canadiens (OHA) |
| 78.0 | Yvon Bilodeau | Defence | Canada | Philadelphia Flyers | Estevan Bruins (WCHL) |
| 79.0 | Mike Ruest | Defence | Canada | Toronto Maple Leafs | Cornwall Royals (QMJHL) |
| 80.0 | Bernie Doan | Defence | Canada | St. Louis Blues | Calgary Centennials (WCHL) |
| 81.0 | Ross Butler | Left Wing | Canada | Montreal Canadiens | Winnipeg Jets (WCHL) |
| 82.0 | Jim Johnston | Centre | Canada | Chicago Black Hawks | University of Wisconsin (WCHA) |
| 83.0 | Wayne Wood | Goaltender | Canada | New York Rangers | Montreal Junior Canadiens (OHA) |
| 84.0 | Bob McMahon | Defence | Canada | Boston Bruins | St Catharines Black Hawks (OHA) |
Question:
What position does Jim Johnston play?
Answer:
Centre