Much like this summer’s “Jurassic World,” “Jurassic World 2” will be inspired by the original 1993 film, “Jurassic Park.” Director Colin Trevorrow revealed exactly which quote he and cowriter Derek Connolly are focusing on while developing the sequel script.

Jurassic World 2” will be based on Alan Grant’s (Sam Neill) quote from the first film: “Dinosaurs and man, separated by 65 million years of evolution, have been thrown back into the mix together. How can we know what to expect?” Trevorrow paraphrased on the “Jurassic Cast Podcast.”

The director noted that they used an Ian Malcolm (Jeff Goldblum) quote in the same way for July’s action film. “It’s, ‘You stood on the shoulders of geniuses to accomplish something as fast as you could, and before you knew what you had, you patented it, you packaged it, slapped it on a plastic lunchbox, and now you want to sell it,’” Trevorrow said. “That to me is 'Jurassic World.' That’s why I had all the product placement, that’s what it was.”

Trevorrow also revealed that the sequel will have a focus on the relationship between humans and animals. “It’s about using this as a starting point for a much larger story about our relationship with these animals, and with animals in general, and the dynamic created by bringing them back to life,” he explained.

Previously, Trevorrow hinted that “Jurassic World 2” might show dinosaurs being used as more than just a theme park attraction. “I feel like the idea that this isn’t always going to be limited to theme parks, and there are applications for this science that reach far beyond entertainment,” he told Wired in July. “And when you look back at nuclear power and how that started, the first instinct was to weaponise it and later on we found it could be used for energy."

Still, that doesn’t tell us much about the humans. Owen (Chris Pratt) and Claire (Bryce Dallas Howard) will return for the sequel, but Trevorrow only vaguely alluded to their storyline. “We know Owen is going to be in it and Claire will be in it and neither are going to be in the same place that we left them in this movie,” Trevorrow told podcast listeners. “Even though Claire is the one who evolves the most over the trilogy, it’s her story that mirrors this changing world, Owen has s--- to deal with. The two of them opened Pandora’s Box in ‘Jurassic World,’ and each of them are responsible for different elements of it in different ways.”

The director hasn’t revealed too many specific details about the movie yet. Most of what he said leaves room for interpretation, but he was very clear about the title. “I call it ['Jurassic World 2'] not because that’s what it’s gonna be called, just ‘cause it’s easier to call it that,” Trevorrow assured fans. A different title will likely be revealed closer to the film’s release.

Listen to Trevorrow’s whole interview below:

“Jurassic World 2” is scheduled to hit theaters in June 22, 2018.