regex

"This question arises frequently."

"The concatenation of events led to her missing the school bus. "

"My sister's joyful expression showed how happy she was about the good news. "

"The teacher's description of the new math concept helped the students understand it better. "

"My brother is a programmer for a video game company. "

"The musician used complex notations on the sheet music to indicate tempo changes and dynamics. "

"The new smartphone's functionality, including its camera and internet access, makes it very useful for school projects. "

"alternation between night shifts and day shifts"

""The baker improved the cookie recipe with each iteration, making it tastier every time he baked a new batch." "

"It is generally known that the Earth is round."

"The teacher used repetition of vocabulary words to help the students learn them. "

"The theoretical model for how to improve student focus in class was presented, but it hasn't yet been tested in a real classroom setting. "