I have two tables danimal and dtaxon

Index key in dtaxon is called PRIMARY
I want to return the common name from the dtaxon table when passed the foreigne key for it from danimal

Using the following code in the console simply return .F. . What am I doing wrong here?

open database aim
use danimal in 0
? keylookup("dtaxon","PRIMARY",danimal.cfk_dtaxon,cc ommon,"not found")