$bfquery=
      # this is a string in single quotes so nothing is interpolated
     'query?relevance=%28names%20of%20it%2C%20ip%20addresses%20of%20it
+%2C%20root%20server%20of%20it%2C%20operating%20systems%20of%20it%2C%20
+last%20report%20time%20of%20it%2C%20agent%20versions%20of%20it%2C%20va
+lues%20of%20results%20from%20%28BES%20Property%20%22_SupportGroup%22%
+29%20of%20it%29%20of%20bes%20computers%20whose%20%28%20name%20of%20it
+%20as%20lowercase%20starts%20
+with%20%22'
      # add to this the value of this perl variable
      . $bfcomputer
      # and also this fixed string
      . '%22%29';
      # end of concatenation


<?xml version="1.0" encoding="UTF-8"?>
<BESAPI xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="BESAPI.xsd">
        <Query Resource="(names of it, ip addresses of it">
                <Result></Result>
                <Error>This expression could not be parsed.</Error>
        </Query>
</BESAPI>
sh: +%2C%20root%20server%20of%20it%2C%20operating%20systems%20of%20it%2C%20: not found
sh: +last%20report%20time%20of%20it%2C%20agent%20versions%20of%20it%2C%20va: not found
sh: +lues%20of%20results%20from%20%28BES%20Property%20%22_SupportGroup%22%: not found
sh: +29%20of%20it%29%20of%20bes%20computers%20whose%20%28%20name%20of%20it: not found
sh: +%20as%20lowercase%20starts%20: not found
sh: +with%20%22server01%22%29: not found