Hiding Information in Reversible English Transforms for a Blind Receiver

Table 7

Summary of conditional transforms. One statement is encoded in 16 different ways.

Conditional	Various forms of the sentence	S	B	P	T
Because p, q	Because Alice had an accident, she quickly rushed to the hospital	0	0	0	0
q, because p	Alice quickly rushed to the hospital, because she had an accident	1	0	0	0
Because p, q	Because she had an accident, Alice quickly rushed to the hospital	0	0	1	0
q, because p	She quickly rushed to the hospital, because Alice had an accident	1	0	1	0
For p, q	For Alice to quickly rush to the hospital, she must have had an accident	0	0	0	1
q, for p	Alice must have had an accident, for her to quickly rush to the hospital	1	0	0	1
For p, q	For her to quickly rush to the hospital, Alice must have had an accident	0	0	1	1
q, for p	She must have had an accident, for her to quickly rush to the hospital	1	0	1	1
Since p, q	Since Alice had an accident, she quickly rushed to the hospital	0	1	0	0
q, since p	Alice quickly rushed to the hospital, since she had an accident	1	1	0	0
Since p, q	Since she had an accident, Alice quickly rushed to the hospital	0	1	1	0
q, since p	She quickly rushed to the hospital, since Alice had an accident	1	1	1	0
In order p, q	In order for Alice to quickly rush to the hospital, she must have had an accident	0	1	0	1
q, in order p	Alice must have had an accident, in order for her to quickly rush to the hospital	1	1	0	1
In order p, q	In order for her to quickly rush to the hospital, Alice must have had an accident	0	1	1	1
q, in order p	She must have had an accident, in order for Alice to quickly rush to the hospital	1	1	1	1

S = subordinating conjunction is the first word of the sentence (e.g., If, For); B = Synonym substitution (e.g., Because = “0”, Since = “1”); P = pronoun in first clause; T = type (p-type = 0, q-type = 1).