49D31 · point (~ planimetry, geometry)

49D48 · sphere, globe ~ stereometry

56F23 · Friendship; 'Amicitia' (Ripa)

56F232 · Infidelity in Friendship; 'Amicitia senza giovamento' (Ripa)

86(AMICITIA ABSQUE VIRTUTE) · proverbs, sayings, etc. (AMICITIA ABSQUE VIRTUTE)