Yagua has a quinary (base 5) counting system. The result is ternary, quaternary, or even quinary compositions. Chimariko uses both a decimal and quinary numeral systems. In-cell NMR is an experimental technique prominent in the research field of protein quinary structure. Nunggubuyu uses a quinary number system. The transient nature of these protein encounters complicates the study of quinary structure. West Uvea is the only Polynesian language to use a quinary numeral system. Quinary systems are based on the number 5. Numbers one through nine follow a quinary pattern. The highest level of decision makers or policy makers perform quinary activities. Thus, the quinary number 101 is evaluated using codice 2 as 26. Therefore, quinary structure can only be understood "in vivo" . A base-5 system (quinary) has been used in many cultures for counting. Each quinary digit has log5 (approx. 2.32) bits of information. Quinary (base-5 or pental) is a numeral system with five as the base.