In a certain code, 'oka' means 'not', 'meta lisa' means 'good boy', and 'oka lisa' means 'not good boy'. What is the code for 'boy'?
Q1. In a certain code, 'oka' means 'not', 'meta lisa' means 'good boy', and 'oka lisa' means 'not good boy'. What is the code for 'boy'?
Answer: lisa
Explanation: From 'meta lisa' and 'oka lisa', 'lisa' is common and corresponds to 'boy'. 'meta' corresponds to 'good'.