Similar naming structures appear in large-scale anime archives like those on Archive.org , where series are organized by season (S1) and episode number (11).
Season 1, Episode 11 of this series (titled "Right in Front of Me, You Were There" ) is frequently indexed as "S1-11.mp4" in digital libraries. S1-11.mp4
"S1-11.mp4" is also a common file-naming convention for the of various anime series within digital archives or collections. S1-11.mp4
These hydrogels are designed to act as "soft actuators," which are materials that can move or change shape when triggered by light. S1-11.mp4