how to test the prediction?

[liuchiente]

dear sir, I got a result after finishing step 4. Passage retrieval, the result looks like follows, the field 'target' is empty, but it really confused me is , how to test the the result ? should I run the test.py? but I didn't found test.py there.

{
'id': '0',
'question': 'What element did Marie Curie name after her native land?',
'target': '',
'answers': ['Polonium', 'Po (chemical element)', 'Po'],
'ctxs': [
{
"title": "Marie Curie",
"text": "them on visits to Poland. She named the first chemical element that she discovered in 1898 "polonium", after her native country. Marie Curie died in 1934, aged 66, at a sanatorium in Sancellemoz (Haute-Savoie), France, of aplastic anemia from exposure to radiation in the course of her scientific research and in the course of her radiological work at field hospitals during World War I. Maria Sk\u0142odowska was born in Warsaw, in Congress Poland in the Russian Empire, on 7 November 1867, the fifth and youngest child of well-known teachers Bronis\u0142awa, "n\u00e9e" Boguska, and W\u0142adys\u0142aw Sk\u0142odowski. The elder siblings of Maria"
},
{
"title": "Marie Curie",
"text": "was present in such minute quantities that they would eventually have to process tons of the ore. In July 1898, Curie and her husband published a joint paper announcing the existence of an element which they named "polonium", in honour of her native Poland, which would for another twenty years remain partitioned among three empires (Russian, Austrian, and Prussian). On 26 December 1898, the Curies announced the existence of a second element, which they named "radium", from the Latin word for "ray". In the course of their research, they also coined the word "radioactivity". To prove their discoveries beyond any"
}
]
}