[rules-users] Unable to create DSL properly?

[boy18nj]

I'm trying to create DSL and DSLR  out of DRL but so far unsuccessfull with
this small example-

DRL (Working OK)-

#created on: Apr 30, 2011
package com.fire
#list any import classes here.
import com.fire.*;
#declare any global variables here
rule "When there is a fire turn on the sprinkler"
        
        when
                #conditions
                Fire( $room : room )
                $sprinkler : Sprinkler( room == $room, on == false )
        then 
                #actions
                modify($sprinkler){setOn(true)};
                System.out.println( "Turn on the sprinkler for room " + 
$room.getName() );
end


DSL-
[condition][]There is fire in "{room}"=Fire( "{room}" : room )
[condition][]"{sprinkler}" is in same "{room}" and sprinkler is
"{off}"="{sprinkler}" : Sprinkler( room == "{room}", on == "{off}" )
[consequence][]Turn on the "{sprinkler}"=modify("{sprinkler}"){setOn(true)};

DSLR- (Error message when compiling mismatched input)
#created on: Apr 30, 2011
package com.fire

expander fireAlarm.dsl
#list any import classes here.
import com.fire.*;
rule "When there is a fire turn on the sprinkler"
        when
                #conditions
                There is fire in "{room}"
                "{sprinkler}" is in same "{room}" and sprinkler is "{off}"
        then 
                #actions
                Turn on the "{sprinkler}"
                log;
end

Can somebody point out what I am doing wrong?

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