context: In 2011, she was promoted to tenure-track investigator in 2011.
source: Palena became a tenured senior investigator in 2017.
reference_original: पलेना 2017 में आजीवन वरिष्ठ अन्वेषक बन गईं।
reference_flipped: पलेना 2017 में आजीवन वरिष्ठ अन्वेषक बन गए।