Question:
Which team did Brian Hornsby play for in Jul, 1981?

Context:
 Brian Hornsby plays for Chester City F.C. from Jan, 1981 to Jan, 1982. 
 Brian Hornsby plays for IK Brage from Jan, 1984 to Jan, 1985. 
 Brian Hornsby plays for Arsenal F.C. from Jan, 1972 to Jan, 1976. 
 Brian Hornsby plays for Shrewsbury Town F.C. from Jan, 1976 to Jan, 1978. 
 Brian Hornsby plays for Chesterfield F.C. from Jan, 1983 to Jan, 1984. 
 Brian Hornsby plays for Carlisle United F.C. from Jan, 1982 to Jan, 1984. 
 Brian Hornsby plays for Edmonton Drillers (1979–82) from Jan, 1982 to Jan, 1982. 
 Brian Hornsby plays for Sheffield Wednesday F.C. from Jan, 1978 to Jan, 1982.

Answer:
Sheffield Wednesday F.C.