Keyword Analysis & Research: what is the oxford comma rule

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the oxford comma rule	1.4	0.2	2414	18	29
what	0.24	0.4	2971	71	4
is	0.31	0.9	3732	90	2
the	1.45	0.9	72	10	3
oxford	1.23	0.8	5801	18	6
comma	1.57	0.6	191	95	5
rule	1.54	0.1	1613	35	4

Keyword	CPC	PCC	Volume	Score
what is the oxford comma rule	0.56	0.6	9802	84