Sadie Camilliere Amanda Izes Olivia Leventhal Daniel Grodner They is Changing: Pragmatic and Grammatical Factors that License Singular they. 2021 CogSci https://escholarship.org/uc/item/3tc9s9b0 conf/cogsci/2021 db/conf/cogsci/cogsci2021.html#CamilliereILG21