1_:formula3 <http://www.w3.org/2000/10/swap/reify#statement> _:t1102793569statement1 . 2_:t1102793569statement1 <http://www.w3.org/2000/10/swap/reify#subject> _:node4 . 3_:t1102793569statement1 <http://www.w3.org/2000/10/swap/reify#predicate> <http://example.org/#father> . 4_:t1102793569statement1 <http://www.w3.org/2000/10/swap/reify#object> ?var2 . 5_:formula3 <http://www.w3.org/2000/10/swap/reify#statement> _:t1102793569statement2 . 6_:t1102793569statement2 <http://www.w3.org/2000/10/swap/reify#subject> ?var1 . 7_:t1102793569statement2 <http://www.w3.org/2000/10/swap/reify#predicate> <http://example.org/#father> . 8_:t1102793569statement2 <http://www.w3.org/2000/10/swap/reify#object> _:node4 . 9_:formula5 <http://www.w3.org/2000/10/swap/reify#statement> _:t1102793569statement3 . 10_:t1102793569statement3 <http://www.w3.org/2000/10/swap/reify#subject> ?var1 . 11_:t1102793569statement3 <http://www.w3.org/2000/10/swap/reify#predicate> <http://example.org/#grandfather> . 12_:t1102793569statement3 <http://www.w3.org/2000/10/swap/reify#object> ?var2 . 13_:formula3 <http://www.w3.org/2000/10/swap/log#implies> _:formula5 . 14