Preschools (education); nursery schools; provision of pre-school and primary school children's education; provision of a bilingual foundational language programme for toddlers and pre-school children (education); teaching and educational instruction of pre-school and primary school children through the means of music and lyrics; education and training services relating to pre-school and primary school education; development of curricula for pre-school and primary school education; publication of pre-school and primary school educational materials; production and distribution (other than transportation) of educational videos for pre-school and primary school children; production and distribution (other than transportation) of sound, movie and video recordings for pre-school and primary school children for education and entertainment purposes; management of education services relating to pre-school and primary school education; advisory, consultancy and information services in relation to all the aforesaid services; all included in this class