Evolution of the system presented in Fig. 7 in the P_orb − e plane. The orange, blue, and red lines correspond to the GeMT model for subsynchronous (f_don = 0.0), synchronous (f_don = 1.0), and supersynchronous donors (f_don = 2.0), respectively. The small circles and crosses indicate the initial and final positions of the systems, respectively. The red circles represent the post-AGB stars (Oomen et al. 2018). The blue triangles represent the Ba dwarfs and giants (Jorissen et al. 2019; Escorza et al. 2019, 2020), orange squares show CH subgiants (Escorza et al. 2019, 2020), green pentagons show CEMP-s stars (Hansen et al. 2016; Jorissen et al. 2016; Sperauskas et al. 2016), purple diamonds show extrinsic S stars (Fekel et al. 2000; Jorissen et al. 2019; Escorza et al. 2020), and pink plusses show wide sdB binaries (Deca et al. 2012; Barlow et al. 2012; Vos et al. 2012, 2013, 2017; Vos et al. 2019; Dorsch et al. 2021; Molina et al. 2022).