AI2D-RST: a multimodal corpus of 1000 primary school science diagrams. - Tuomo Hiippala; Malihe Alikhani; Jonas Haverinen; Timo Kalliokoski; Evanfiya Logacheva; Serafina Orekhova; Aino Tuomainen; Matthew Stone; John A. Bateman (Lang. Resour. Evaluation, 2021)