lol Thijs is pronounced as Tise (T-eye-s, no "th" sound) this name is short of Matthijs/Mathijs, which is a form of
Mathias.
Isa is pronounced EE-sa
Lotte is pronunced Loh-te (we *do* pronounce the 'te' part, and it's loh, not lah)
Sanne is pronounced Sa-nuh (hard Sa sound, and strong pronouncement of nuh)