Reza Request

Dear SPARQL Fans 
Hi 
I need a sparql query which returns all entities that at least one of their triples has rdf:type predicate and Country as object . 
for example suppose we have these triples: 

A Age 10 
A Place Qom 
A rdf:type Country 

B Age 20 
B Surface 100 
B Place Mashhad 

C Age 40 
C CoastLine 2000 
C rdf:type City 

D Age 60 
D Near Wrtyu 
D rdf: type Country 

This query must return below triples: 
A Age 10 
A Place Qom 
A rdf:type Country 
D Age 60 
D Near Wrtyu 
D rdf:type Country 

the query returns all triples related to A and D entities. Because one of their triples has rdf:type country as predicate and object. 
how can I write this SPARQL?