Final answer:
The question refers to a character reading something repeatedly on a lifeboat, possibly Pi from 'Life of Pi', but the provided passages do not clearly indicate any character re-reading specific material. Without reference to Pi's survival manual in the passages, we cannot accurately determine what is read repeatedly.
Step-by-step explanation:
The student's question appears to pertain to a survival situation in a literary context, possibly referencing the character Pi from Yann Martel's novel Life of Pi. However, without specific reference to Pi, the passages provided do not clearly indicate that the character in question reads anything repeatedly on the lifeboat. In each of the passages, there is no mention of a character re-reading any specific material. Instead, they describe a range of experiences and thoughts characters have while at sea, ranging from a struggle for survival to introspective thoughts. For character Pi in Life of Pi, he reads a survival manual repeatedly while stranded on the lifeboat, which is not referenced in any of the given excerpts. Therefore, based on the information provided, we cannot accurately determine what Pi reads over and over on the lifeboat, as it is not substantiated by the excerpts.