preferred_name: Conversion of C2 into C2a and C2b (Canis familiaris)
preferred_name_lc: conversion of c2 into c2a and c2b (canis familiaris)
label: Conversion of C2 into C2a and C2b (Canis familiaris)
label_lc: conversion of c2 into c2a and c2b (canis familiaris)