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In this undated photo provided by UNICEF PNG, East Sepik massacre survivors participate in a class in a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

In this undated photo provided by UNICEF PNG, East Sepik massacre survivors participate in a class in a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

This undated photo provided by Fr Tomas Ravaioli shows local villagers posing for a photo with him in Goroka, Papua New Guinea. (Fr Tomas Ravaioli via AP)

This undated photo provided by Fr Tomas Ravaioli shows local villagers posing for a photo with him in Goroka, Papua New Guinea. (Fr Tomas Ravaioli via AP)

In this undated photo provided by UNICEF PNG, East Sepik massacre survivors play volleyball at a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

In this undated photo provided by UNICEF PNG, East Sepik massacre survivors play volleyball at a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

FILE - Painted warriors practice their performance on May 6, 1984, in Port Moresby, Papua New Guinea, before the arrival of Pope John Paul II. (AP Photo/Jeff Widener, File)

FILE - Painted warriors practice their performance on May 6, 1984, in Port Moresby, Papua New Guinea, before the arrival of Pope John Paul II. (AP Photo/Jeff Widener, File)

In this undated photo provided by UNICEF PNG, East Sepik massacre survivors play a game at a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

In this undated photo provided by UNICEF PNG, East Sepik massacre survivors play a game at a care center in Angoram, Papua New Guinea. (Noreen Chambers/UNICEF PNG via AP)

This undated photo provided by Fr Tomas Ravaioli shows young villagers posing for a photo with him in Rabaul, Papua New Guinea. (Fr Tomas Ravaioli via AP)

This undated photo provided by Fr Tomas Ravaioli shows young villagers posing for a photo with him in Rabaul, Papua New Guinea. (Fr Tomas Ravaioli via AP)

This undated photo provided by Fr Tomas Ravaioli shows a local villager posing for a photo with him in Goroka, Papua New Guinea. (Fr Tomas Ravaioli via AP)

This undated photo provided by Fr Tomas Ravaioli shows a local villager posing for a photo with him in Goroka, Papua New Guinea. (Fr Tomas Ravaioli via AP)

FILE - Pope John Paul II is greeted by Papua New Guinea Highland natives on his visit to Mt. Hagen, Papua New Guinea, on May 8, 1984. (AP Photo, File)

FILE - Pope John Paul II is greeted by Papua New Guinea Highland natives on his visit to Mt. Hagen, Papua New Guinea, on May 8, 1984. (AP Photo, File)