78340
A 1981 study of a deceased triploid XXX twin fetus without a heart showed that although its fetal development suggested that it was an identical twin , as it shared a placenta with its healthy twin , tests revealed that it was probably a polar body twin .
 disease: XXX; disease: without a heart
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: XXX, without a heart 
Answer:
 disease: XXX; disease: without a heart