AFAICT metric sillables basically count the vowel sounds so service is two and chocolate is two or thre: "ser-vis" (ˈsɜːvɪs) and "chok-lait" or "cho-ko-lait" (ˈ

AFAICT metric sillables basically count the vowel sounds so service is two and chocolate is two or thre: "ser-vis" (ˈsɜːvɪs) and "chok-lait" or "cho-ko-lait" (ˈʧɔklət or ˈʧɔkolət).