Keyword Analysis & Research: what are the two forms of comparison

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what are the two forms of comparison	0.06	0.5	8219	71	36
what	0.72	0.4	7739	78	4
are	0.45	0.2	2430	93	3
the	1.69	0.4	9401	79	3
two	1.19	0.9	3430	30	3
forms	0.39	0.8	1597	77	5
of	0.99	0.1	3716	2	2
comparison	1.75	0.8	7763	39	10

Keyword	CPC	PCC	Volume	Score
what are the two forms of comparison	0.64	0.4	5863	61