By comparing the three equations, we can identify individual number-word associations. From 256 and 358, we see that 2 and 3 represent 'you/are' and 'we' respectively, while 5 appears in both representing 'bad' or a negation. From 358 and 637, the number 8 is common to both phrases containing 'and', suggesting 8 represents 'and'. The number 3 represents 'we/bad' and 2 represents 'you/are'. Therefore, 'and' corresponds to 8.