Definition: Generate an appropriate title for the given text. The generated title must be short and include the main topic of the text. The preferred titles are under fifteen words.
Input: By Annabel RackhamNewsbeat reporter A spokesperson for NBC said it was "never our intention" to joke about her surgery. The rebooted series features an episode where two characters argue over who donated a kidney to the singer in 2017. NBC also said they had been in touch with Gomez about making a donation to her charity. Selena, 28, received a kidney transplant three years ago after being diagnosed with the autoimmune disease Lupus. 'The joke is offensive to donor families' The characters in Saved By The Bell speculated in a scene about who donated the kidney - with one claiming it was Demi Lovato and another saying it was Justin Bieber's mum. Later in the episode, graffiti appears on the wall saying, "does Selena Gomez even have kidneys?" She does, and one of them was donated by best friend Francia Raisa. Francia has since tweeted about the episode, praising other donors for performing a "selfless act". Cecilia Adamou is 21 and has just graduated from university. At the age of 12 she received a kidney transplant from her mum and says she found the way Saved By The Bell dealt with organ donation "tasteless". "What many people don't realise is that although Selena Gomez knew her kidney donor, most people who receive kidney transplants receive them from dead donors and never find out who they are," she tells Radio 1 Newsbeat. "So I think the joke the show made about not knowing who gave Selena her kidney is offensive to donor families." Cecilia also says she believes it's wrong for any show in 2020 to make jokes about illnesses and disabilities. "There's already lots of wrong information online about organ donation," she says. "I think the show could give people the wrong idea about organ donation and put them off." "The joke is offensive to donor families" Fiona Loud is the head of policy at charity Kidney Care UK and has received a kidney herself. She says donating a kidney is "one of the most selfless things a person can do" for a friend, family member or a stranger. "This extraordinary generosity transforms lives and is something to be respected, rather than be made fun of. "Every day in the UK around 20 people will develop kidney failure and sadly at least one person will die every day in need of a kidney transplant. "We would like to give our utmost thanks and appreciation to amazing kidney donors like Francia Raisa." What is Lupus? According to the NHS, it's a long-term health condition that causes joint pain, skin rashes and tiredness. It has no cure and can also cause headaches, mouth sores, a high temperature and hair loss. It is not easy to diagnose because it has similar symptoms to other conditions but a blood test will usually reveal the condition if high levels of a type of antibody are found. Follow Newsbeat on Instagram, Facebook, Twitter and YouTube. Listen to Newsbeat live at 12:45 and 17:45 weekdays - or listen back here.

Saved By The Bell apologises to Selena Gomez for kidney transplant joke