preferred_name: Conversion of C4 into C4a and C4b (Canis familiaris)
preferred_name_lc: conversion of c4 into c4a and c4b (canis familiaris)
label: Conversion of C4 into C4a and C4b (Canis familiaris)
label_lc: conversion of c4 into c4a and c4b (canis familiaris)