In a rare coincidence, two girls starting prep at a Brisbane primary school share the same name – and that's just the first similarity between the pair.
The two unrelated Olivia Chens, among 225 other students starting prep at Sunnybank Hills State School on Monday, were also born on the same day and in the same hospital.
A father of one of the girls, Wayne Chen, said the families only discovered the coincidence at the prep orientation day when they went to meet the teacher.
"The teacher said 'Olivia Chen is here already', we thought it was some kind of mistake," he said.
"A lady just came up to have a look, and said, 'Actually, there are two Olivia Chens.' "
Kathy Zhang, the mother of the other Olivia, said the school had to check their addresses to confirm it was not a mistake.
"They initially thought it was a duplicate, but when they checked it was a different [home] address," she said, adding she now had to include her daughter's middle initial on everything school-related to save extra confusion.
When asked what she was most looking forward to on her first day in class, Ms Zhang's daughter said "drawing".
Mr Chen said he was not so surprised his daughter shared her name with another girl.
"Olivia is quite a popular name these days, and Chen is a common family name in the Chinese community," he said.
However, he said the odds of the girls being born at the same hospital on the same day – they both turned five on January 11 – are "like winning the lottery".
The Olivias are just two of thousands of children set to walk through the gates of Queensland's 1239 state schools on Monday, and they will be among 1300 students to go to school at Sunnybank Hills State School.
Ms Zhang said her Olivia was excited to start school with all the big kids.
"She feels like she's a big girl now," Ms Zhang said. "She just wants to wear her uniform every day."
Mr Chen said his daughter felt the same.
"Once we bought her uniform she was very excited, she just wants to wear it all day," he said.
Sunnybank Hills State School principal Geoffrey Mill the school was looking forward to welcoming the two girls.
"They'll be obviously really excited about starting prep," he said.
"While they share this rather quirky coincidence, we'll make sure they have their individual identity as well."
Although the two girls share many things in common, Mr Mill said they were not going to be in the same class.
"We want to be able to give them their own sense of feeling – we don't want them having an identity crisis," he said.
"It's important that both children have their own identity, that they feel individual in their own way."