[Q]: The new work went an extra step, suggesting that the connections that the stem cells form to help bridge the damaged spinal cord, are key to recovery. The new work involves stem cells.
[A]: Yes

[Q]: NBC (10 p.m. ET) Bert Parks is back for his silver anniversary as emcee of America’s favorite pulchritude parade, assisted by Mary Ann Mobley, the Mississippi girl who was crowned Miss America in 1959—the year many of this season’s hopefuls were born. SUNDAY, SEPTEMBER 9  Mary Ann Mobley will travel to China in 2020
[A]: It's impossible to say

[Q]: WEST CHESTER, Pa. (AP) — A massive fire has ripped through a senior living community in Pennsylvania. The blaze was reported around 11 p.m. Thursday at Barclay Friends Senior Living Community in West Chester, about 35 miles west of Philadelphia. The fire quickly spread to multiple buildings, forcing residents outside into the cold. Emergency crews transported people from the scene. There was no immediate word on any injuries. Advertisement It's unclear what sparked the fire. A gas leak sparked the fire.
[A]: It's impossible to say

[Q]: 5W1H: 450 Dalits, including 2016 Una flogging victims, embrace Buddhism A Dalit family, whose four members were allegedly flogged by cow vigilantes in Una tehsil in Gujarat's Gir Somnath district in 2016, embraced Buddhism on Sunday at an event organised in Mota Samadhiyala village. There is such a thing as cow vigilantes.
[A]:
Yes